:Product: 0406RSGA.txt :Issued: 2026 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 2026 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 7 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and 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 unsettled levels for the past 24 hours. Solar wind speed reached a peak of 595 km/s at 05/2155Z. Total IMF reached 5 nT at 06/1154Z. The maximum southward component of Bz reached -4 nT at 06/1136Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 6075 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (07 Apr) and quiet levels on days two and three (08 Apr, 09 Apr). Protons have a slight chance of crossing threshold on days one, two, and three (07 Apr, 08 Apr, 09 Apr). III. Event probabilities 07 Apr-09 Apr Class M 40/40/40 Class X 10/10/10 Proton 10/10/10 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Apr 116 Predicted 07 Apr-09 Apr 110/105/105 90 Day Mean 06 Apr 137 V. Geomagnetic A Indices Observed Afr/Ap 05 Apr 008/012 Estimated Afr/Ap 06 Apr 008/009 Predicted Afr/Ap 07 Apr-09 Apr 008/008-006/005-005/005 VI. Geomagnetic Activity Probabilities 07 Apr-09 Apr A. Middle Latitudes Active 15/10/10 Minor Storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/20/20 Major-severe storm 25/20/20