:Product: 0406RSGA.txt :Issued: 2025 Apr 06 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Solar Geophysical Activity Report and Forecast SDF Number 96 Issued at 2200Z on 06 Apr 2025 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 9 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be moderate with a slight chance for an X-class flare on days one, two, and three (07 Apr, 08 Apr, 09 Apr). IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 734 km/s at 06/0323Z. Total IMF reached 8 nT at 06/0518Z. The maximum southward component of Bz reached -7 nT at 06/0013Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 9242 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and two (07 Apr, 08 Apr) and quiet to unsettled levels on day three (09 Apr). III. Event probabilities 07 Apr-09 Apr Class M 55/55/55 Class X 10/10/10 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Apr 167 Predicted 07 Apr-09 Apr 165/160/150 90 Day Mean 06 Apr 178 V. Geomagnetic A Indices Observed Afr/Ap 05 Apr 020/ NA Estimated Afr/Ap 06 Apr 018/021 Predicted Afr/Ap 07 Apr-09 Apr 011/004-013/004-007/003 VI. Geomagnetic Activity Probabilities 07 Apr-09 Apr A. Middle Latitudes Active 35/30/15 Minor Storm 20/15/05 Major-severe storm 05/01/01 B. High Latitudes Active 10/15/15 Minor Storm 30/30/20 Major-severe storm 50/45/25