:Product: Geomagnetic Forecast :Issued: 2022 May 18 2205 UTC # Prepared by the U.S. Dept. of Commerce, NOAA, Space Weather Prediction Center # NOAA Ap Index Forecast Observed Ap 17 May 012 Estimated Ap 18 May 008 Predicted Ap 19 May-21 May 014-012-008 NOAA Geomagnetic Activity Probabilities 19 May-21 May Active 35/35/30 Minor storm 15/15/10 Moderate storm 01/01/01 Strong-Extreme storm 01/01/01 NOAA Kp index forecast 19 May - 21 May May 19 May 20 May 21 00-03UT 2 4 2 03-06UT 2 3 3 06-09UT 2 3 2 09-12UT 2 2 2 12-15UT 2 2 2 15-18UT 3 2 2 18-21UT 4 3 2 21-00UT 4 2 2