:Product: 0323RSGA.txt :Issued: 2026 Mar 23 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 82 Issued at 2200Z on 23 Mar 2026 IA. Analysis of Solar Active Regions and Activity from 22/2100Z to 23/2100Z: 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 on days one, two, and three (24 Mar, 25 Mar, 26 Mar). IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z: The geomagnetic field has been at quiet to major storm levels for the past 24 hours. Solar wind speed reached a peak of 766 km/s at 23/0705Z. Total IMF reached 7 nT at 22/2106Z. The maximum southward component of Bz reached -5 nT at 22/2238Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 8285 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (24 Mar) and quiet to active levels on days two and three (25 Mar, 26 Mar). III. Event probabilities 24 Mar-26 Mar Class M 25/25/25 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 23 Mar 124 Predicted 24 Mar-26 Mar 125/125/130 90 Day Mean 23 Mar 141 V. Geomagnetic A Indices Observed Afr/Ap 22 Mar 036/075 Estimated Afr/Ap 23 Mar 020/028 Predicted Afr/Ap 24 Mar-26 Mar 018/014-011/012-011/014 VI. Geomagnetic Activity Probabilities 24 Mar-26 Mar A. Middle Latitudes Active 40/30/40 Minor Storm 35/15/15 Major-severe storm 10/01/01 B. High Latitudes Active 05/10/10 Minor Storm 20/25/30 Major-severe storm 75/40/50