:Product: 3-Day Forecast
:Issued: 2019 Feb 16 1210 UTC
# Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center
#
A. NOAA Geomagnetic Activity Observation and Forecast

The greatest observed 3 hr Kp over the past 24 hours was 1 (below NOAA
Scale levels).
The greatest expected 3 hr Kp for Feb 16-Feb 18 2019 is 2 (below NOAA
Scale levels).

NOAA Kp index breakdown Feb 16-Feb 18 2019

            Feb 16     Feb 17     Feb 18
00-03UT        0          2          2     
03-06UT        0          1          1     
06-09UT        1          1          1     
09-12UT        0          1          1     
12-15UT        1          1          1     
15-18UT        1          1          1     
18-21UT        2          2          2     
21-00UT        2          2          2     

Rationale: No G1 (Minor) or greater geomagnetic storms are expected.  No
significant transient or recurrent solar wind features are forecast.

B. NOAA Solar Radiation Activity Observation and Forecast

Solar radiation, as observed by NOAA GOES-15 over the past 24 hours, was
below S-scale storm level thresholds.

Solar Radiation Storm Forecast for Feb 16-Feb 18 2019

              Feb 16  Feb 17  Feb 18
S1 or greater    1%      1%      1%

Rationale: No S1 (Minor) or greater solar radiation storms are expected.
No significant active region activity favorable for radiation storm
production is forecast.

C. NOAA Radio Blackout Activity and Forecast

No radio blackouts were observed over the past 24 hours.

Radio Blackout Forecast for Feb 16-Feb 18 2019

              Feb 16        Feb 17        Feb 18
R1-R2            1%            1%            1%
R3 or greater    1%            1%            1%

Rationale: No R1 (Minor) or greater radio blackouts are expected.  No
significant active region flare activity is forecast.