[{"product_id":"EF3A","issue_datetime":"2026-04-14 11:37:10.323","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3675\r\nIssue Time: 2026 Apr 14 1137 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3674\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 1650 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"EF3A","issue_datetime":"2026-04-13 11:01:31.880","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3674\r\nIssue Time: 2026 Apr 13 1101 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3673\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 1610 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"EF3A","issue_datetime":"2026-04-12 13:17:14.360","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3673\r\nIssue Time: 2026 Apr 12 1317 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3672\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 1082 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04W","issue_datetime":"2026-04-12 09:45:25.183","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5317\r\nIssue Time: 2026 Apr 12 0945 UTC\r\n\r\nCANCEL WARNING: Geomagnetic K-index of 4 expected\r\nCancel Serial Number: 5316\r\nOriginal Issue Time: 2026 Apr 10 0143 UTC\r\n\r\nComment: Active conditions (Kp=4) are no longer expected to occur. \r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-04-11 17:56:04.477","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5316\r\nIssue Time: 2026 Apr 11 1756 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5315\r\nValid From: 2026 Apr 10 0145 UTC\r\nNow Valid Until: 2026 Apr 12 1500 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-04-11 13:06:43.880","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3672\r\nIssue Time: 2026 Apr 11 1306 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3671\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 1714 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K05W","issue_datetime":"2026-04-10 14:26:04.470","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2223\r\nIssue Time: 2026 Apr 10 1426 UTC\r\n\r\nWARNING: Geomagnetic K-index of 5 expected\r\nValid From: 2026 Apr 10 1425 UTC\r\nValid To: 2026 Apr 11 0900 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"EF3A","issue_datetime":"2026-04-10 14:07:21.717","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3671\r\nIssue Time: 2026 Apr 10 1407 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3670\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 10680 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04W","issue_datetime":"2026-04-10 13:50:17.650","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5315\r\nIssue Time: 2026 Apr 10 1350 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5314\r\nValid From: 2026 Apr 10 0145 UTC\r\nNow Valid Until: 2026 Apr 11 1800 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04A","issue_datetime":"2026-04-10 02:08:32.690","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2649\r\nIssue Time: 2026 Apr 10 0208 UTC\r\n\r\nALERT: Geomagnetic K-index of 4\r\n Threshold Reached: 2026 Apr 10 0205 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-04-10 01:43:15.303","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5314\r\nIssue Time: 2026 Apr 10 0143 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Apr 10 0145 UTC\r\nValid To: 2026 Apr 10 1500 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-04-09 04:59:35.707","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3670\r\nIssue Time: 2026 Apr 09 0459 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3669\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 7322 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"EF3A","issue_datetime":"2026-04-08 04:59:34.357","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3669\r\nIssue Time: 2026 Apr 08 0459 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3668\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 7359 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"A20F","issue_datetime":"2026-04-08 02:29:35.123","message":"Space Weather Message Code: WATA20\r\nSerial Number: 1107\r\nIssue Time: 2026 Apr 08 0229 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G1 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nApr 09:  None (Below G1)   Apr 10:  G1 (Minor)   Apr 11:  G1 (Minor)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"EF3A","issue_datetime":"2026-04-07 05:00:18.943","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3668\r\nIssue Time: 2026 Apr 07 0500 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3667\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 6075 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04W","issue_datetime":"2026-04-07 01:24:33.957","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5313\r\nIssue Time: 2026 Apr 07 0124 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Apr 07 0124 UTC\r\nValid To: 2026 Apr 07 1200 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-04-06 04:59:20.727","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3667\r\nIssue Time: 2026 Apr 06 0459 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3666\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 5995 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"EF3A","issue_datetime":"2026-04-05 05:07:42.053","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3666\r\nIssue Time: 2026 Apr 05 0507 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3665\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 2419 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04W","issue_datetime":"2026-04-05 02:48:33.723","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5312\r\nIssue Time: 2026 Apr 05 0248 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5311\r\nValid From: 2026 Apr 02 0047 UTC\r\nNow Valid Until: 2026 Apr 05 0900 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-04-04 23:56:54.047","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5311\r\nIssue Time: 2026 Apr 04 2356 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5310\r\nValid From: 2026 Apr 02 0047 UTC\r\nNow Valid Until: 2026 Apr 05 0300 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-04-04 11:58:02.247","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3665\r\nIssue Time: 2026 Apr 04 1158 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3664\r\nBegin Time: 2026 Apr 03 0920 UTC\r\nYesterday Maximum 2MeV Flux: 4465 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K05A","issue_datetime":"2026-04-04 02:54:27.627","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 2006\r\nIssue Time: 2026 Apr 04 0254 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 04 0248 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"XM5S","issue_datetime":"2026-04-04 01:46:30.047","message":"Space Weather Message Code: SUMXM5\r\nSerial Number: 312\r\nIssue Time: 2026 Apr 04 0146 UTC\r\n\r\nSUMMARY: X-ray Event exceeded M5\r\nBegin Time: 2026 Apr 04 0107 UTC\r\nMaximum Time: 2026 Apr 04 0117 UTC\r\nEnd Time: 2026 Apr 04 0123 UTC\r\nX-ray Class: M7.5\r\nLocation: N04W04\r\nNOAA Scale: R2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact centered primarily on sub-solar point on the sunlit side of Earth.\r\nRadio - Limited blackout of HF (high frequency) radio communication for tens of minutes."},{"product_id":"XM5A","issue_datetime":"2026-04-04 01:17:22.690","message":"Space Weather Message Code: ALTXMF\r\nSerial Number: 522\r\nIssue Time: 2026 Apr 04 0117 UTC\r\n\r\nALERT: X-Ray Flux exceeded M5\r\nThreshold Reached: 2026 Apr 04 0117 UTC\r\nNOAA Scale: R2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap."},{"product_id":"K06W","issue_datetime":"2026-04-03 23:10:11.837","message":"Space Weather Message Code: WARK06\r\nSerial Number: 653\r\nIssue Time: 2026 Apr 03 2310 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-Index of 6 expected\r\nExtension to Serial Number: 652\r\nValid From: 2026 Apr 03 1551 UTC\r\nNow Valid Until: 2026 Apr 04 0600 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K06A","issue_datetime":"2026-04-03 23:10:11.817","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 712\r\nIssue Time: 2026 Apr 03 2310 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Apr 03 2303 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-04-03 21:41:04.000","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 2005\r\nIssue Time: 2026 Apr 03 2141 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 03 2140 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-04-03 21:02:39.527","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5310\r\nIssue Time: 2026 Apr 03 2102 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5309\r\nValid From: 2026 Apr 02 0047 UTC\r\nNow Valid Until: 2026 Apr 04 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K06A","issue_datetime":"2026-04-03 21:01:33.987","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 711\r\nIssue Time: 2026 Apr 03 2101 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Apr 03 2059 UTC\r\nSynoptic Period: 1800-2100 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05W","issue_datetime":"2026-04-03 21:01:33.963","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2222\r\nIssue Time: 2026 Apr 03 2101 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2221\r\nValid From: 2026 Apr 02 0230 UTC\r\nNow Valid Until: 2026 Apr 04 1500 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-04-03 19:08:43.663","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 2004\r\nIssue Time: 2026 Apr 03 1908 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 03 1906 UTC\r\nSynoptic Period: 1800-2100 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K07A","issue_datetime":"2026-04-03 16:47:26.220","message":"Space Weather Message Code: ALTK07\r\nSerial Number: 216\r\nIssue Time: 2026 Apr 03 1647 UTC\r\n\r\nALERT: Geomagnetic K-index of 7\r\n Threshold Reached: 2026 Apr 03 1646 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G3 - Strong\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K07W","issue_datetime":"2026-04-03 16:25:08.373","message":"Space Weather Message Code: WARK07\r\nSerial Number: 148\r\nIssue Time: 2026 Apr 03 1625 UTC\r\n\r\nWARNING: Geomagnetic K-index of 7 or greater expected\r\nValid From: 2026 Apr 03 1625 UTC\r\nValid To: 2026 Apr 03 2359 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G3 or greater\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K06A","issue_datetime":"2026-04-03 15:55:55.093","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 710\r\nIssue Time: 2026 Apr 03 1555 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Apr 03 1555 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K06W","issue_datetime":"2026-04-03 15:52:05.490","message":"Space Weather Message Code: WARK06\r\nSerial Number: 652\r\nIssue Time: 2026 Apr 03 1552 UTC\r\n\r\nWARNING: Geomagnetic K-Index of 6 expected\r\nValid From: 2026 Apr 03 1551 UTC\r\nValid To: 2026 Apr 03 2359 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"MSIS","issue_datetime":"2026-04-03 15:45:12.670","message":"Space Weather Message Code: SUMSUD\r\nSerial Number: 298\r\nIssue Time: 2026 Apr 03 1545 UTC\r\n\r\nSUMMARY: Geomagnetic Sudden Impulse\r\nObserved: 2026 Apr 03 1529 UTC\r\nDeviation: 72 nT\r\nStation: HAD\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation"},{"product_id":"K05A","issue_datetime":"2026-04-03 15:42:14.950","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 2003\r\nIssue Time: 2026 Apr 03 1542 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 03 1535 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"SGIW","issue_datetime":"2026-04-03 15:29:23.420","message":"Space Weather Message Code: WARSUD\r\nSerial Number: 253\r\nIssue Time: 2026 Apr 03 1529 UTC\r\n\r\nWARNING: Geomagnetic Sudden Impulse expected\r\nValid From: 2026 Apr 03 1529 UTC\r\nValid To: 2026 Apr 03 1550 UTC\r\nIP Shock Passage Observed: 2026 Apr 03 1503 UTC\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation"},{"product_id":"K05W","issue_datetime":"2026-04-03 14:51:54.773","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2221\r\nIssue Time: 2026 Apr 03 1451 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2220\r\nValid From: 2026 Apr 02 0230 UTC\r\nNow Valid Until: 2026 Apr 03 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"EF3A","issue_datetime":"2026-04-03 09:36:25.380","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3664\r\nIssue Time: 2026 Apr 03 0936 UTC\r\n\r\nALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nThreshold Reached: 2026 Apr 03 0920 UTC\r\nStation: GOES19\r\n \r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K05A","issue_datetime":"2026-04-03 08:31:35.720","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 2002\r\nIssue Time: 2026 Apr 03 0831 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 03 0830 UTC\r\nSynoptic Period: 0600-0900 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-04-02 20:52:06.767","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 2001\r\nIssue Time: 2026 Apr 02 2052 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 02 2052 UTC\r\nSynoptic Period: 1800-2100 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"A30F","issue_datetime":"2026-04-02 17:43:18.647","message":"Space Weather Message Code: WATA30\r\nSerial Number: 270\r\nIssue Time: 2026 Apr 02 1743 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nApr 02:  G2 (Moderate)   Apr 03:  G2 (Moderate)   Apr 04:  G2 (Moderate)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K06A","issue_datetime":"2026-04-02 17:11:41.030","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 709\r\nIssue Time: 2026 Apr 02 1711 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Apr 02 1705 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K04W","issue_datetime":"2026-04-02 17:11:41.010","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5309\r\nIssue Time: 2026 Apr 02 1711 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5308\r\nValid From: 2026 Apr 02 0047 UTC\r\nNow Valid Until: 2026 Apr 03 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05W","issue_datetime":"2026-04-02 17:11:40.987","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2220\r\nIssue Time: 2026 Apr 02 1711 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2219\r\nValid From: 2026 Apr 02 0230 UTC\r\nNow Valid Until: 2026 Apr 03 1500 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K06W","issue_datetime":"2026-04-02 17:11:40.963","message":"Space Weather Message Code: WARK06\r\nSerial Number: 651\r\nIssue Time: 2026 Apr 02 1711 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-Index of 6 expected\r\nExtension to Serial Number: 650\r\nValid From: 2026 Apr 02 0753 UTC\r\nNow Valid Until: 2026 Apr 03 0900 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-04-02 16:29:02.380","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 2000\r\nIssue Time: 2026 Apr 02 1629 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 02 1627 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-04-02 14:32:31.447","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1999\r\nIssue Time: 2026 Apr 02 1432 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 02 1430 UTC\r\nSynoptic Period: 1200-1500 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-04-02 10:22:03.600","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1998\r\nIssue Time: 2026 Apr 02 1022 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 02 1021 UTC\r\nSynoptic Period: 0900-1200 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05W","issue_datetime":"2026-04-02 07:53:29.083","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2219\r\nIssue Time: 2026 Apr 02 0753 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2218\r\nValid From: 2026 Apr 02 0230 UTC\r\nNow Valid Until: 2026 Apr 02 1800 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K06W","issue_datetime":"2026-04-02 07:53:29.053","message":"Space Weather Message Code: WARK06\r\nSerial Number: 650\r\nIssue Time: 2026 Apr 02 0753 UTC\r\n\r\nWARNING: Geomagnetic K-Index of 6 expected\r\nValid From: 2026 Apr 02 0753 UTC\r\nValid To: 2026 Apr 02 1800 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K04W","issue_datetime":"2026-04-02 07:51:14.570","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5308\r\nIssue Time: 2026 Apr 02 0751 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5307\r\nValid From: 2026 Apr 02 0047 UTC\r\nNow Valid Until: 2026 Apr 02 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05A","issue_datetime":"2026-04-02 07:50:25.067","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1997\r\nIssue Time: 2026 Apr 02 0750 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 02 0750 UTC\r\nSynoptic Period: 0600-0900 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-04-02 03:01:02.073","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1996\r\nIssue Time: 2026 Apr 02 0301 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Apr 02 0300 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05W","issue_datetime":"2026-04-02 02:30:26.507","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2218\r\nIssue Time: 2026 Apr 02 0230 UTC\r\n\r\nWARNING: Geomagnetic K-index of 5 expected\r\nValid From: 2026 Apr 02 0230 UTC\r\nValid To: 2026 Apr 02 0900 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04A","issue_datetime":"2026-04-02 02:20:22.237","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2648\r\nIssue Time: 2026 Apr 02 0220 UTC\r\n\r\nALERT: Geomagnetic K-index of 4\r\n Threshold Reached: 2026 Apr 02 0220 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-04-02 00:47:54.683","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5307\r\nIssue Time: 2026 Apr 02 0047 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Apr 02 0047 UTC\r\nValid To: 2026 Apr 02 0900 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"TIIA","issue_datetime":"2026-04-01 23:35:19.690","message":"Space Weather Message Code: ALTTP2\r\nSerial Number: 1474\r\nIssue Time: 2026 Apr 01 2335 UTC\r\n\r\nALERT: Type II Radio Emission\r\nBegin Time: 2026 Apr 01 2303 UTC\r\nEstimated Velocity: 58 km\/s\r\n\r\n\r\n\r\nDescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event."},{"product_id":"EF3A","issue_datetime":"2026-04-01 13:30:37.470","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3663\r\nIssue Time: 2026 Apr 01 1330 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3662\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 1413 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"MSIS","issue_datetime":"2026-04-01 12:33:06.823","message":"Space Weather Message Code: SUMSUD\r\nSerial Number: 297\r\nIssue Time: 2026 Apr 01 1233 UTC\r\n\r\nSUMMARY: Geomagnetic Sudden Impulse\r\nObserved: 2026 Apr 01 1206 UTC\r\nDeviation: 19 nT\r\nStation: HAD\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation"},{"product_id":"K04W","issue_datetime":"2026-04-01 12:10:32.543","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5306\r\nIssue Time: 2026 Apr 01 1210 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Apr 01 1210 UTC\r\nValid To: 2026 Apr 01 2359 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"SGIW","issue_datetime":"2026-04-01 11:39:09.937","message":"Space Weather Message Code: WARSUD\r\nSerial Number: 252\r\nIssue Time: 2026 Apr 01 1139 UTC\r\n\r\nWARNING: Geomagnetic Sudden Impulse expected\r\nValid From: 2026 Apr 01 1206 UTC\r\nValid To: 2026 Apr 01 1236 UTC\r\nIP Shock Passage Observed: 2026 Apr 01 1130 UTC\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation"},{"product_id":"A30F","issue_datetime":"2026-03-31 22:13:34.773","message":"Space Weather Message Code: WATA30\r\nSerial Number: 269\r\nIssue Time: 2026 Mar 31 2213 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nApr 01:  G2 (Moderate)   Apr 02:  G1 (Minor)   Apr 03:  None (Below G1)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"EF3A","issue_datetime":"2026-03-31 14:54:21.610","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3662\r\nIssue Time: 2026 Mar 31 1454 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3661\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 1358 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"A20F","issue_datetime":"2026-03-31 12:31:18.377","message":"Space Weather Message Code: WATA20\r\nSerial Number: 1106\r\nIssue Time: 2026 Mar 31 1231 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G1 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 31:  G2 (Moderate)   Apr 01:  G1 (Minor)   Apr 02:  G1 (Minor)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"A20F","issue_datetime":"2026-03-31 12:28:56.460","message":"Space Weather Message Code: WATA20\r\nSerial Number: 1105\r\nIssue Time: 2026 Mar 31 1228 UTC\r\n\r\nCANCEL WATCH: Geomagnetic Storm Category G1 Predicted\r\nCancel Serial Number: 1104\r\nOriginal Issue Time: 2026 Mar 31 1227 UTC\r\n\r\nComment: cancelled due to incorrect date.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"A20F","issue_datetime":"2026-03-31 12:27:33.493","message":"Space Weather Message Code: WATA20\r\nSerial Number: 1104\r\nIssue Time: 2026 Mar 31 1227 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G1 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nApr 01:  G2 (Moderate)   Apr 02:  G1 (Minor)   Apr 03:  None (Below G1)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-03-30 08:55:41.077","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5305\r\nIssue Time: 2026 Mar 30 0855 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5304\r\nValid From: 2026 Mar 29 1546 UTC\r\nNow Valid Until: 2026 Mar 30 2359 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-03-30 07:42:30.013","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3661\r\nIssue Time: 2026 Mar 30 0742 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3660\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 3755 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"A30F","issue_datetime":"2026-03-30 06:27:43.707","message":"Space Weather Message Code: WATA30\r\nSerial Number: 268\r\nIssue Time: 2026 Mar 30 0627 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 30:  G1 (Minor)   Mar 31:  G2 (Moderate)   Apr 01:  G1 (Minor)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"BHIS","issue_datetime":"2026-03-30 05:43:50.183","message":"Space Weather Message Code: SUM10R\r\nSerial Number: 903\r\nIssue Time: 2026 Mar 30 0543 UTC\r\n\r\nSUMMARY: 10cm Radio Burst\r\nBegin Time: 2026 Mar 30 0254 UTC\r\nMaximum Time: 2026 Mar 30 0304 UTC\r\nEnd Time: 2026 Mar 30 0342 UTC\r\nDuration: 48 minutes\r\nPeak Flux: 1800 sfu\r\nLatest Penticton Noon Flux: 158 sfu\r\n\r\n\r\n\r\nDescription: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications."},{"product_id":"XX0S","issue_datetime":"2026-03-30 05:18:40.317","message":"Space Weather Message Code: SUMX01\r\nSerial Number: 214\r\nIssue Time: 2026 Mar 30 0518 UTC\r\n\r\nSUMMARY: X-ray Event exceeded X1\r\nBegin Time: 2026 Mar 30 0247 UTC\r\nMaximum Time: 2026 Mar 30 0319 UTC\r\nEnd Time: 2026 Mar 30 0344 UTC\r\nX-ray Class: X1,4\r\nLocation: S27E42\r\nNOAA Scale: R3 - Strong\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.\r\nRadio - Wide area blackout of HF (high frequency) radio communication for about an hour."},{"product_id":"XX0S","issue_datetime":"2026-03-30 05:16:51.260","message":"Space Weather Message Code: SUMX01\r\nSerial Number: 213\r\nIssue Time: 2026 Mar 30 0516 UTC\r\n\r\nCANCEL SUMMARY: X-ray Event exceeded X1\r\nCancel Serial Number: 212\r\nOriginal Issue Time: 2026 Mar 30 0353 UTC\r\n\r\nComment: The flare maximum was recorded as an X1.4.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.\r\nRadio - Wide area blackout of HF (high frequency) radio communication for about an hour."},{"product_id":"XX0S","issue_datetime":"2026-03-30 03:53:14.100","message":"Space Weather Message Code: SUMX01\r\nSerial Number: 212\r\nIssue Time: 2026 Mar 30 0353 UTC\r\n\r\nSUMMARY: X-ray Event exceeded X1\r\nBegin Time: 2026 Mar 30 0247 UTC\r\nMaximum Time: 2026 Mar 30 0319 UTC\r\nEnd Time: 2026 Mar 30 0344 UTC\r\nX-ray Class: X1.5\r\nLocation: S27E42\r\nNOAA Scale: R3 - Strong\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.\r\nRadio - Wide area blackout of HF (high frequency) radio communication for about an hour."},{"product_id":"TIIA","issue_datetime":"2026-03-30 03:22:36.183","message":"Space Weather Message Code: ALTTP2\r\nSerial Number: 1473\r\nIssue Time: 2026 Mar 30 0322 UTC\r\n\r\nALERT: Type II Radio Emission\r\nBegin Time: 2026 Mar 30 0300 UTC\r\nEstimated Velocity: 1872 km\/s\r\n\r\n\r\n\r\nDescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event."},{"product_id":"XM5A","issue_datetime":"2026-03-30 03:07:57.773","message":"Space Weather Message Code: ALTXMF\r\nSerial Number: 521\r\nIssue Time: 2026 Mar 30 0307 UTC\r\n\r\nALERT: X-Ray Flux exceeded M5\r\nThreshold Reached: 2026 Mar 30 0306 UTC\r\nNOAA Scale: R2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact centered on sub-solar point on the sunlit side of Earth. Extent of blackout of HF (high frequency) radio communication dependent upon current X-ray Flux intensity. For real-time information on affected area and expected duration please see http:\/\/www.swpc.noaa.gov\/products\/d-region-absorption-predictions-d-rap."},{"product_id":"K04W","issue_datetime":"2026-03-29 15:48:24.040","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5304\r\nIssue Time: 2026 Mar 29 1548 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 29 1546 UTC\r\nValid To: 2026 Mar 30 0900 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-03-29 12:47:46.350","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3660\r\nIssue Time: 2026 Mar 29 1247 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3659\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 1596 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04A","issue_datetime":"2026-03-29 03:00:17.710","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2647\r\nIssue Time: 2026 Mar 29 0300 UTC\r\n\r\nALERT: Geomagnetic K-index of 4\r\n Threshold Reached: 2026 Mar 29 0259 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-03-29 02:07:41.910","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5303\r\nIssue Time: 2026 Mar 29 0207 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 29 0207 UTC\r\nValid To: 2026 Mar 29 1200 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"A20F","issue_datetime":"2026-03-28 16:32:11.980","message":"Space Weather Message Code: WATA20\r\nSerial Number: 1103\r\nIssue Time: 2026 Mar 28 1632 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G1 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 29:  None (Below G1)   Mar 30:  G1 (Minor)   Mar 31:  None (Below G1)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nComment: Isolated periods of G1 (Minor) geomagnetic storming are likely on 30 Mar due to CH HSS effects.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"EF3A","issue_datetime":"2026-03-28 14:55:23.973","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3659\r\nIssue Time: 2026 Mar 28 1455 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3658\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 12785 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"TIIA","issue_datetime":"2026-03-28 08:08:35.083","message":"Space Weather Message Code: ALTTP2\r\nSerial Number: 1472\r\nIssue Time: 2026 Mar 28 0808 UTC\r\n\r\nALERT: Type II Radio Emission\r\nBegin Time: 2026 Mar 28 0736 UTC\r\nEstimated Velocity: 868 km\/s\r\n\r\n\r\n\r\nDescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event."},{"product_id":"K04W","issue_datetime":"2026-03-28 02:18:47.853","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5302\r\nIssue Time: 2026 Mar 28 0218 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 28 0218 UTC\r\nValid To: 2026 Mar 28 1200 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-03-27 05:00:11.140","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3658\r\nIssue Time: 2026 Mar 27 0500 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3657\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 11382 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"TIIA","issue_datetime":"2026-03-26 12:21:36.980","message":"Space Weather Message Code: ALTTP2\r\nSerial Number: 1471\r\nIssue Time: 2026 Mar 26 1221 UTC\r\n\r\nALERT: Type II Radio Emission\r\nBegin Time: 2026 Mar 26 0617 UTC\r\nEstimated Velocity: 607 km\/s\r\n\r\n\r\n\r\nDescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event."},{"product_id":"EF3A","issue_datetime":"2026-03-26 04:59:50.823","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3657\r\nIssue Time: 2026 Mar 26 0459 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3656\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 8452 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"A20F","issue_datetime":"2026-03-25 15:58:47.967","message":"Space Weather Message Code: WATA20\r\nSerial Number: 1102\r\nIssue Time: 2026 Mar 25 1558 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G1 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 26:  G1 (Minor)   Mar 27:  None (Below G1)   Mar 28:  None (Below G1)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-03-25 08:26:18.870","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1995\r\nIssue Time: 2026 Mar 25 0826 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 25 0826 UTC\r\nSynoptic Period: 0600-0900 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-03-25 08:23:28.307","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5301\r\nIssue Time: 2026 Mar 25 0823 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 25 0820 UTC\r\nValid To: 2026 Mar 25 1500 UTC\r\nWarning Condition: Persistence\r\n\r\nComment: Correction of the previous extension that was cancelled due to incorrect date. \r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-03-25 08:22:25.880","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5300\r\nIssue Time: 2026 Mar 25 0822 UTC\r\n\r\nCANCEL WARNING: Geomagnetic K-index of 4 expected\r\nCancel Serial Number: 5299\r\nOriginal Issue Time: 2026 Mar 25 0440 UTC\r\n\r\nComment: Wrong date in the Valid Until field.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-03-25 08:06:01.660","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5299\r\nIssue Time: 2026 Mar 25 0806 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5298\r\nValid From: 2026 Mar 25 0440 UTC\r\nNow Valid Until: 2025 Mar 26 1500 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05W","issue_datetime":"2026-03-25 08:05:39.830","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2217\r\nIssue Time: 2026 Mar 25 0805 UTC\r\n\r\nWARNING: Geomagnetic K-index of 5 expected\r\nValid From: 2026 Mar 25 0805 UTC\r\nValid To: 2026 Mar 25 1200 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04A","issue_datetime":"2026-03-25 08:05:01.833","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2646\r\nIssue Time: 2026 Mar 25 0805 UTC\r\n\r\nALERT: Geomagnetic K-index of 4\r\n Threshold Reached: 2026 Mar 25 0805 UTC\r\nSynoptic Period: 0600-0900 UTC\r\n \r\nActive Warning: Yes\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-03-25 04:59:21.727","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3656\r\nIssue Time: 2026 Mar 25 0459 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3655\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 11907 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04W","issue_datetime":"2026-03-25 04:40:29.680","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5298\r\nIssue Time: 2026 Mar 25 0440 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 25 0440 UTC\r\nValid To: 2026 Mar 25 0900 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-03-24 05:00:10.860","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3655\r\nIssue Time: 2026 Mar 24 0500 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3654\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 8285 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04W","issue_datetime":"2026-03-24 04:20:30.377","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5297\r\nIssue Time: 2026 Mar 24 0420 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5296\r\nValid From: 2026 Mar 23 1410 UTC\r\nNow Valid Until: 2026 Mar 24 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05W","issue_datetime":"2026-03-24 04:20:30.370","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2216\r\nIssue Time: 2026 Mar 24 0420 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2215\r\nValid From: 2026 Mar 23 1440 UTC\r\nNow Valid Until: 2026 Mar 24 1200 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05W","issue_datetime":"2026-03-23 20:58:30.083","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2215\r\nIssue Time: 2026 Mar 23 2058 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2214\r\nValid From: 2026 Mar 23 1440 UTC\r\nNow Valid Until: 2026 Mar 24 0600 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-03-23 20:58:30.073","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5296\r\nIssue Time: 2026 Mar 23 2058 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5295\r\nValid From: 2026 Mar 23 1410 UTC\r\nNow Valid Until: 2026 Mar 24 1200 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05A","issue_datetime":"2026-03-23 17:52:12.777","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1994\r\nIssue Time: 2026 Mar 23 1752 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 23 1750 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-03-23 15:00:56.463","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1993\r\nIssue Time: 2026 Mar 23 1500 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 23 1459 UTC\r\nSynoptic Period: 1200-1500 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05W","issue_datetime":"2026-03-23 14:41:41.290","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2214\r\nIssue Time: 2026 Mar 23 1441 UTC\r\n\r\nWARNING: Geomagnetic K-index of 5 expected\r\nValid From: 2026 Mar 23 1440 UTC\r\nValid To: 2026 Mar 23 2359 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-03-23 14:13:52.720","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5295\r\nIssue Time: 2026 Mar 23 1413 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 23 1410 UTC\r\nValid To: 2026 Mar 24 0300 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-03-23 12:01:41.367","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3654\r\nIssue Time: 2026 Mar 23 1201 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3653\r\nBegin Time: 2026 Mar 22 1430 UTC\r\nYesterday Maximum 2MeV Flux: 1321 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K05A","issue_datetime":"2026-03-23 01:07:46.737","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1992\r\nIssue Time: 2026 Mar 23 0107 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 23 0105 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K06W","issue_datetime":"2026-03-22 23:43:34.870","message":"Space Weather Message Code: WARK06\r\nSerial Number: 649\r\nIssue Time: 2026 Mar 22 2343 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-Index of 6 expected\r\nExtension to Serial Number: 648\r\nValid From: 2026 Mar 22 1020 UTC\r\nNow Valid Until: 2026 Mar 23 0600 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-22 23:39:29.363","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1991\r\nIssue Time: 2026 Mar 22 2339 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 2330 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nComment: Corrected the Alert start time.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K06A","issue_datetime":"2026-03-22 23:37:25.067","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 708\r\nIssue Time: 2026 Mar 22 2337 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 22 2335 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-22 23:31:27.823","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1990\r\nIssue Time: 2026 Mar 22 2331 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 1730 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"A30F","issue_datetime":"2026-03-22 20:34:52.833","message":"Space Weather Message Code: WATA30\r\nSerial Number: 267\r\nIssue Time: 2026 Mar 22 2034 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 23:  G2 (Moderate)   Mar 24:  None (Below G1)   Mar 25:  None (Below G1)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nComment: G2 (Moderate) geomagnetic storming is likely on 23 Mar, particularly during the early portions of the UTC-day.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K06A","issue_datetime":"2026-03-22 20:03:04.650","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 707\r\nIssue Time: 2026 Mar 22 2003 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 22 1953 UTC\r\nSynoptic Period: 1800-2100 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-22 19:37:27.853","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1989\r\nIssue Time: 2026 Mar 22 1937 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 1929 UTC\r\nSynoptic Period: 1800-2100 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K07A","issue_datetime":"2026-03-22 18:05:14.640","message":"Space Weather Message Code: ALTK07\r\nSerial Number: 215\r\nIssue Time: 2026 Mar 22 1805 UTC\r\n\r\nALERT: Geomagnetic K-index of 7\r\n Threshold Reached: 2026 Mar 22 1759 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G3 - Strong\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K04W","issue_datetime":"2026-03-22 16:17:28.790","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5294\r\nIssue Time: 2026 Mar 22 1617 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5293\r\nValid From: 2026 Mar 20 0719 UTC\r\nNow Valid Until: 2026 Mar 23 1200 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05W","issue_datetime":"2026-03-22 16:15:53.820","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2213\r\nIssue Time: 2026 Mar 22 1615 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2212\r\nValid From: 2026 Mar 20 1930 UTC\r\nNow Valid Until: 2026 Mar 23 0900 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05W","issue_datetime":"2026-03-22 16:14:37.380","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2212\r\nIssue Time: 2026 Mar 22 1614 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2211\r\nValid From: 2026 Mar 20 1930 UTC\r\nNow Valid Until: 2026 Mar 22 0900 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K06W","issue_datetime":"2026-03-22 16:12:30.057","message":"Space Weather Message Code: WARK06\r\nSerial Number: 648\r\nIssue Time: 2026 Mar 22 1612 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-Index of 6 expected\r\nExtension to Serial Number: 647\r\nValid From: 2026 Mar 22 1020 UTC\r\nNow Valid Until: 2026 Mar 22 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K07W","issue_datetime":"2026-03-22 16:11:11.707","message":"Space Weather Message Code: WARK07\r\nSerial Number: 147\r\nIssue Time: 2026 Mar 22 1611 UTC\r\n\r\nWARNING: Geomagnetic K-index of 7 or greater expected\r\nValid From: 2026 Mar 22 1609 UTC\r\nValid To: 2026 Mar 22 2359 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G3 or greater\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K06A","issue_datetime":"2026-03-22 16:06:48.133","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 706\r\nIssue Time: 2026 Mar 22 1606 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 22 1559 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-22 16:03:20.717","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1988\r\nIssue Time: 2026 Mar 22 1603 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 1553 UTC\r\nSynoptic Period: 1500-1800 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K06A","issue_datetime":"2026-03-22 14:51:58.313","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 705\r\nIssue Time: 2026 Mar 22 1451 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 22 1448 UTC\r\nSynoptic Period: 1200-1500 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"EF3A","issue_datetime":"2026-03-22 14:38:25.160","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3653\r\nIssue Time: 2026 Mar 22 1438 UTC\r\n\r\nALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nThreshold Reached: 2026 Mar 22 1430 UTC\r\nStation: GOES19\r\n \r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K05A","issue_datetime":"2026-03-22 13:10:49.177","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1987\r\nIssue Time: 2026 Mar 22 1310 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 1306 UTC\r\nSynoptic Period: 1200-1500 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K07A","issue_datetime":"2026-03-22 10:43:10.043","message":"Space Weather Message Code: ALTK07\r\nSerial Number: 214\r\nIssue Time: 2026 Mar 22 1043 UTC\r\n\r\nALERT: Geomagnetic K-index of 7\r\n Threshold Reached: 2026 Mar 22 1042 UTC\r\nSynoptic Period: 0900-1200 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G3 - Strong\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K07W","issue_datetime":"2026-03-22 10:42:27.220","message":"Space Weather Message Code: WARK07\r\nSerial Number: 146\r\nIssue Time: 2026 Mar 22 1042 UTC\r\n\r\nWARNING: Geomagnetic K-index of 7 or greater expected\r\nValid From: 2026 Mar 22 1041 UTC\r\nValid To: 2026 Mar 22 1500 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G3 or greater\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K06A","issue_datetime":"2026-03-22 10:26:40.000","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 704\r\nIssue Time: 2026 Mar 22 1026 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 22 1026 UTC\r\nSynoptic Period: 0900-1200 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K06W","issue_datetime":"2026-03-22 10:24:03.347","message":"Space Weather Message Code: WARK06\r\nSerial Number: 647\r\nIssue Time: 2026 Mar 22 1024 UTC\r\n\r\nWARNING: Geomagnetic K-Index of 6 expected\r\nValid From: 2026 Mar 22 1020 UTC\r\nValid To: 2026 Mar 22 1800 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-22 09:53:22.207","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1986\r\nIssue Time: 2026 Mar 22 0953 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 0953 UTC\r\nSynoptic Period: 0900-1200 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-03-22 08:45:57.260","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1985\r\nIssue Time: 2026 Mar 22 0845 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 0845 UTC\r\nSynoptic Period: 0600-0900 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05A","issue_datetime":"2026-03-22 05:25:52.580","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1984\r\nIssue Time: 2026 Mar 22 0525 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 22 0525 UTC\r\nSynoptic Period: 0300-0600 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05W","issue_datetime":"2026-03-22 05:14:17.543","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2211\r\nIssue Time: 2026 Mar 22 0514 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2210\r\nValid From: 2026 Mar 20 1930 UTC\r\nNow Valid Until: 2026 Mar 22 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-03-22 05:13:30.400","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5293\r\nIssue Time: 2026 Mar 22 0513 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5292\r\nValid From: 2026 Mar 20 0719 UTC\r\nNow Valid Until: 2026 Mar 22 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"A30F","issue_datetime":"2026-03-21 19:46:17.017","message":"Space Weather Message Code: WATA30\r\nSerial Number: 266\r\nIssue Time: 2026 Mar 21 1946 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 22:  G2 (Moderate)   Mar 23:  G1 (Minor)   Mar 24:  None (Below G1)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nComment: G2 (Moderate) geomagnetic storming is likely on 22 Mar due to waning CME influences followed by the anticipated arrival of CH HSS effects. Isolated periods of G1 (Minor) geomagnetic storming is likely to continue into 23 Mar as CH HSS effects continue.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05W","issue_datetime":"2026-03-21 16:50:24.710","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2210\r\nIssue Time: 2026 Mar 21 1650 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2209\r\nValid From: 2026 Mar 20 1930 UTC\r\nNow Valid Until: 2026 Mar 22 0600 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-03-21 16:47:28.173","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5292\r\nIssue Time: 2026 Mar 21 1647 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5291\r\nValid From: 2026 Mar 20 0719 UTC\r\nNow Valid Until: 2026 Mar 22 1200 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05A","issue_datetime":"2026-03-21 07:53:07.250","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1983\r\nIssue Time: 2026 Mar 21 0753 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 21 0752 UTC\r\nSynoptic Period: 0600-0900 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K06W","issue_datetime":"2026-03-21 05:17:35.590","message":"Space Weather Message Code: WARK06\r\nSerial Number: 646\r\nIssue Time: 2026 Mar 21 0517 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-Index of 6 expected\r\nExtension to Serial Number: 645\r\nValid From: 2026 Mar 20 2020 UTC\r\nNow Valid Until: 2026 Mar 21 1500 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K06A","issue_datetime":"2026-03-21 05:17:35.583","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 703\r\nIssue Time: 2026 Mar 21 0517 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 21 0514 UTC\r\nSynoptic Period: 0300-0600 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05W","issue_datetime":"2026-03-21 05:17:35.570","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2209\r\nIssue Time: 2026 Mar 21 0517 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 5 expected\r\nExtension to Serial Number: 2208\r\nValid From: 2026 Mar 20 1930 UTC\r\nNow Valid Until: 2026 Mar 21 1800 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K04W","issue_datetime":"2026-03-21 05:17:35.560","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5291\r\nIssue Time: 2026 Mar 21 0517 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5290\r\nValid From: 2026 Mar 20 0719 UTC\r\nNow Valid Until: 2026 Mar 21 2359 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K05A","issue_datetime":"2026-03-21 03:32:05.153","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1982\r\nIssue Time: 2026 Mar 21 0332 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 21 0331 UTC\r\nSynoptic Period: 0300-0600 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K07A","issue_datetime":"2026-03-21 01:54:56.203","message":"Space Weather Message Code: ALTK07\r\nSerial Number: 213\r\nIssue Time: 2026 Mar 21 0154 UTC\r\n\r\nALERT: Geomagnetic K-index of 7\r\n Threshold Reached: 2026 Mar 21 0154 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G3 - Strong\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K06A","issue_datetime":"2026-03-21 01:41:52.367","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 702\r\nIssue Time: 2026 Mar 21 0141 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 21 0141 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-21 00:34:35.307","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1981\r\nIssue Time: 2026 Mar 21 0034 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 21 0033 UTC\r\nSynoptic Period: 0000-0300 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K07A","issue_datetime":"2026-03-20 23:29:12.240","message":"Space Weather Message Code: ALTK07\r\nSerial Number: 212\r\nIssue Time: 2026 Mar 20 2329 UTC\r\n\r\nALERT: Geomagnetic K-index of 7\r\n Threshold Reached: 2026 Mar 20 2328 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G3 - Strong\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K07W","issue_datetime":"2026-03-20 23:05:56.793","message":"Space Weather Message Code: WARK07\r\nSerial Number: 145\r\nIssue Time: 2026 Mar 20 2305 UTC\r\n\r\nWARNING: Geomagnetic K-index of 7 or greater expected\r\nValid From: 2026 Mar 20 2305 UTC\r\nValid To: 2026 Mar 21 0600 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G3 or greater\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"K06A","issue_datetime":"2026-03-20 22:12:22.787","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 701\r\nIssue Time: 2026 Mar 20 2212 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 20 2208 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-20 21:36:31.443","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1980\r\nIssue Time: 2026 Mar 20 2136 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 20 2126 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"MSIS","issue_datetime":"2026-03-20 21:09:53.620","message":"Space Weather Message Code: SUMSUD\r\nSerial Number: 296\r\nIssue Time: 2026 Mar 20 2109 UTC\r\n\r\nSUMMARY: Geomagnetic Sudden Impulse\r\nObserved: 2026 Mar 20 2053 UTC\r\nDeviation: 56 nT\r\nStation: BOU\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation"},{"product_id":"K06A","issue_datetime":"2026-03-20 21:04:30.617","message":"Space Weather Message Code: ALTK06\r\nSerial Number: 700\r\nIssue Time: 2026 Mar 20 2104 UTC\r\n\r\nALERT: Geomagnetic K-index of 6\r\n Threshold Reached: 2026 Mar 20 2059 UTC\r\nSynoptic Period: 1800-2100 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G2 - Moderate\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"A50F","issue_datetime":"2026-03-20 20:43:58.600","message":"Space Weather Message Code: WATA50\r\nSerial Number: 96\r\nIssue Time: 2026 Mar 20 2043 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G3 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 20:  G3 (Strong)   Mar 21:  G3 (Strong)   Mar 22:  G1 (Minor)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nComment: G3 (Strong) geomagnetic storming is likely due to combined CME effects from events that left the Sun on 16 and 18 Mar.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 50 degrees Geomagnetic Latitude.\r\nInduced Currents - Power system voltage irregularities possible, false alarms may be triggered on some protection devices.\r\nSpacecraft - Systems may experience surface charging; increased drag on low Earth-orbit satellites and orientation problems may occur.\r\nNavigation - Intermittent satellite navigation (GPS) problems, including loss-of-lock and increased range error may occur.\r\nRadio - HF (high frequency) radio may be intermittent.\r\nAurora - Aurora may be seen as low as Pennsylvania to Iowa to Oregon."},{"product_id":"SGIW","issue_datetime":"2026-03-20 20:40:35.003","message":"Space Weather Message Code: WARSUD\r\nSerial Number: 251\r\nIssue Time: 2026 Mar 20 2040 UTC\r\n\r\nWARNING: Geomagnetic Sudden Impulse expected\r\nValid From: 2026 Mar 20 2050 UTC\r\nValid To: 2026 Mar 20 2120 UTC\r\nIP Shock Passage Observed: 2026 Mar 20 2118 UTC\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation"},{"product_id":"K06W","issue_datetime":"2026-03-20 20:22:56.357","message":"Space Weather Message Code: WARK06\r\nSerial Number: 645\r\nIssue Time: 2026 Mar 20 2022 UTC\r\n\r\nWARNING: Geomagnetic K-Index of 6 expected\r\nValid From: 2026 Mar 20 2020 UTC\r\nValid To: 2026 Mar 21 0600 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G2 - Moderate\r\n\r\nComment: G2 (Moderate) geomagnetic storm conditions are expected into the the early portions of 21 Mar (UTC) due to CME effects. \r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"K05A","issue_datetime":"2026-03-20 20:18:58.940","message":"Space Weather Message Code: ALTK05\r\nSerial Number: 1979\r\nIssue Time: 2026 Mar 20 2018 UTC\r\n\r\nALERT: Geomagnetic K-index of 5\r\n Threshold Reached: 2026 Mar 20 2018 UTC\r\nSynoptic Period: 1800-2100 UTC\r\n \r\nActive Warning: Yes\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"K05W","issue_datetime":"2026-03-20 19:32:04.137","message":"Space Weather Message Code: WARK05\r\nSerial Number: 2208\r\nIssue Time: 2026 Mar 20 1932 UTC\r\n\r\nWARNING: Geomagnetic K-index of 5 expected\r\nValid From: 2026 Mar 20 1930 UTC\r\nValid To: 2026 Mar 21 0900 UTC\r\nWarning Condition: Onset\r\nNOAA Scale: G1 - Minor\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 60 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nSpacecraft - Minor impact on satellite operations possible.\r\nAurora - Aurora may be visible at high latitudes, i.e., northern tier of the U.S. such as northern Michigan and Maine."},{"product_id":"EF3A","issue_datetime":"2026-03-20 14:55:19.443","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3652\r\nIssue Time: 2026 Mar 20 1455 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3651\r\nBegin Time: 2026 Mar 15 1630 UTC\r\nYesterday Maximum 2MeV Flux: 4941 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"K04W","issue_datetime":"2026-03-20 12:39:56.870","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5290\r\nIssue Time: 2026 Mar 20 1239 UTC\r\n\r\nEXTENDED WARNING: Geomagnetic K-index of 4 expected\r\nExtension to Serial Number: 5289\r\nValid From: 2026 Mar 20 0719 UTC\r\nNow Valid Until: 2026 Mar 21 1200 UTC\r\nWarning Condition: Persistence\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04A","issue_datetime":"2026-03-20 08:54:56.533","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2645\r\nIssue Time: 2026 Mar 20 0854 UTC\r\n\r\nALERT: Geomagnetic K-index of 4\r\n Threshold Reached: 2026 Mar 20 0854 UTC\r\nSynoptic Period: 0600-0900 UTC\r\n \r\nActive Warning: Yes\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-03-20 07:18:46.533","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5289\r\nIssue Time: 2026 Mar 20 0718 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 20 0719 UTC\r\nValid To: 2026 Mar 20 1500 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"EF3A","issue_datetime":"2026-03-19 04:59:20.403","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3651\r\nIssue Time: 2026 Mar 19 0459 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3650\r\nBegin Time: 2026 Mar 15 1630 UTC\r\nYesterday Maximum 2MeV Flux: 2949 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"A30F","issue_datetime":"2026-03-18 21:14:07.740","message":"Space Weather Message Code: WATA30\r\nSerial Number: 265\r\nIssue Time: 2026 Mar 18 2114 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 19:  G2 (Moderate)   Mar 20:  G2 (Moderate)   Mar 21:  G2 (Moderate)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"BHIS","issue_datetime":"2026-03-18 09:03:34.557","message":"Space Weather Message Code: SUM10R\r\nSerial Number: 902\r\nIssue Time: 2026 Mar 18 0903 UTC\r\n\r\nSUMMARY: 10cm Radio Burst\r\nBegin Time: 2026 Mar 18 0833 UTC\r\nMaximum Time: 2026 Mar 18 0835 UTC\r\nEnd Time: 2026 Mar 18 0839 UTC\r\nDuration: 6 minutes\r\nPeak Flux: 229 sfu\r\nLatest Penticton Noon Flux: 111 sfu\r\n\r\n\r\n\r\nDescription: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications."},{"product_id":"TIIA","issue_datetime":"2026-03-18 08:59:48.527","message":"Space Weather Message Code: ALTTP2\r\nSerial Number: 1470\r\nIssue Time: 2026 Mar 18 0859 UTC\r\n\r\nALERT: Type II Radio Emission\r\nBegin Time: 2026 Mar 18 0840 UTC\r\nEstimated Velocity: 866 km\/s\r\n\r\n\r\n\r\nDescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event."},{"product_id":"EF3A","issue_datetime":"2026-03-18 04:59:44.273","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3650\r\nIssue Time: 2026 Mar 18 0459 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3649\r\nBegin Time: 2026 Mar 15 1630 UTC\r\nYesterday Maximum 2MeV Flux: 2233 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"A30F","issue_datetime":"2026-03-17 18:36:37.167","message":"Space Weather Message Code: WATA30\r\nSerial Number: 264\r\nIssue Time: 2026 Mar 17 1836 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 18:  None (Below G1)   Mar 19:  G2 (Moderate)   Mar 20:  G1 (Minor)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nComment: CME influences are likely on 19 Mar with any effects continuing, but weakening, into 20 Mar.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"EF3A","issue_datetime":"2026-03-17 14:03:49.470","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3649\r\nIssue Time: 2026 Mar 17 1403 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3648\r\nBegin Time: 2026 Mar 15 1630 UTC\r\nYesterday Maximum 2MeV Flux: 2213 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"A30F","issue_datetime":"2026-03-16 21:08:59.560","message":"Space Weather Message Code: WATA30\r\nSerial Number: 264\r\nIssue Time: 2026 Mar 16 2108 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 17:  None (Below G1)   Mar 18:  None (Below G1)   Mar 19:  G2 (Moderate)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nComment: G2 (Moderate) geomagnetic storming is likely on 19 Mar with the arrival of a CME that left the Sun on 16 Mar. This is a reissue of the previous watch to correct an internal system error.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"A30F","issue_datetime":"2026-03-16 20:25:18.200","message":"Space Weather Message Code: WATA30\r\nSerial Number: 264\r\nIssue Time: 2026 Mar 16 2025 UTC\r\n\r\nWATCH: Geomagnetic Storm Category G2 Predicted\r\n\r\nHighest Storm Level Predicted by Day:\r\nMar 17:  None (Below G1)   Mar 18:  None (Below G1)   Mar 19:  G2 (Moderate)\r\n\r\nTHIS SUPERSEDES ANY\/ALL PRIOR WATCHES IN EFFECT\r\n\r\nComment: G2 (Moderate) geomagnetic storming is likely on 19 Mar with the arrival of the 16 Mar CME event. This event was associated with an M2.7 flare from AR 4392.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude.\r\nInduced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms.\r\nSpacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible.\r\nRadio - HF (high frequency) radio propagation can fade at higher latitudes.\r\nAurora - Aurora may be seen as low as New York to Wisconsin to Washington state."},{"product_id":"EF3A","issue_datetime":"2026-03-16 13:20:36.937","message":"Space Weather Message Code: ALTEF3\r\nSerial Number: 3648\r\nIssue Time: 2026 Mar 16 1320 UTC\r\n\r\nCONTINUED ALERT: Electron 2MeV Integral Flux exceeded 1000pfu\r\nContinuation of Serial Number: 3647\r\nBegin Time: 2026 Mar 15 1630 UTC\r\nYesterday Maximum 2MeV Flux: 1429 pfu\r\n\r\n\r\n\r\nPotential Impacts: Satellite systems may experience significant charging resulting in increased risk to satellite systems."},{"product_id":"BHIS","issue_datetime":"2026-03-16 12:29:37.860","message":"Space Weather Message Code: SUM10R\r\nSerial Number: 901\r\nIssue Time: 2026 Mar 16 1229 UTC\r\n\r\nSUMMARY: 10cm Radio Burst\r\nBegin Time: 2026 Mar 16 1209 UTC\r\nMaximum Time: 2026 Mar 16 1213 UTC\r\nEnd Time: 2026 Mar 16 1217 UTC\r\nDuration: 8 minutes\r\nPeak Flux: 380 sfu\r\nLatest Penticton Noon Flux: 109 sfu\r\n\r\nComment: Associated with M2.7 flare from AR 4392.\r\n\r\n\r\n\r\nDescription: A 10cm radio burst indicates that the electromagnetic burst associated with a solar flare at the 10cm wavelength was double or greater than the initial 10cm radio background. This can be indicative of significant radio noise in association with a solar flare. This noise is generally short-lived but can cause interference for sensitive receivers including radar, GPS, and satellite communications."},{"product_id":"TIVA","issue_datetime":"2026-03-16 12:26:18.087","message":"Space Weather Message Code: ALTTP4\r\nSerial Number: 705\r\nIssue Time: 2026 Mar 16 1226 UTC\r\n\r\nALERT: Type IV Radio Emission\r\nBegin Time: 2026 Mar 16 1212 UTC\r\n\r\n\r\n\r\nDescription: Type IV emissions occur in association with major eruptions on the sun and are typically associated with strong coronal mass ejections and solar radiation storms."},{"product_id":"TIIA","issue_datetime":"2026-03-16 12:24:57.823","message":"Space Weather Message Code: ALTTP2\r\nSerial Number: 1469\r\nIssue Time: 2026 Mar 16 1224 UTC\r\n\r\nALERT: Type II Radio Emission\r\nBegin Time: 2026 Mar 16 1209 UTC\r\nEstimated Velocity: 1227 km\/s\r\n\r\nComment: Likely associated with M2.7 flare from AR 4392.\r\n\r\n\r\n\r\nDescription: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event."},{"product_id":"K04A","issue_datetime":"2026-03-15 23:15:54.907","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2644\r\nIssue Time: 2026 Mar 15 2315 UTC\r\n\r\nALERT: Geomagnetic K-index of 4\r\n Threshold Reached: 2026 Mar 15 2310 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04A","issue_datetime":"2026-03-15 23:15:10.933","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2643\r\nIssue Time: 2026 Mar 15 2315 UTC\r\n\r\nCANCEL ALERT: Geomagnetic K-index of 4\r\nCancel Serial Number: 2642\r\nOriginal Issue Time: 2026 Mar 15 2314 UTC\r\n\r\nComment: Incorrectly entered start time.\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04A","issue_datetime":"2026-03-15 23:14:06.087","message":"Space Weather Message Code: ALTK04\r\nSerial Number: 2642\r\nIssue Time: 2026 Mar 15 2314 UTC\r\n\r\nALERT: Geomagnetic K-index of 4\r\n Threshold Reached: 2026 Mar 15 2300 UTC\r\nSynoptic Period: 2100-2400 UTC\r\n \r\nActive Warning: Yes\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."},{"product_id":"K04W","issue_datetime":"2026-03-15 23:10:08.973","message":"Space Weather Message Code: WARK04\r\nSerial Number: 5288\r\nIssue Time: 2026 Mar 15 2310 UTC\r\n\r\nWARNING: Geomagnetic K-index of 4 expected\r\nValid From: 2026 Mar 15 2309 UTC\r\nValid To: 2026 Mar 16 1200 UTC\r\nWarning Condition: Onset\r\n\r\nNOAA Space Weather Scale descriptions can be found at\r\nwww.swpc.noaa.gov\/noaa-scales-explanation\r\n\r\nPotential Impacts: Area of impact primarily poleward of 65 degrees Geomagnetic Latitude.\r\nInduced Currents - Weak power grid fluctuations can occur.\r\nAurora - Aurora may be visible at high latitudes such as Canada and Alaska."}]