:Product: 0305RSGA.txt :Issued: 2026 Mar 05 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 64 Issued at 2200Z on 05 Mar 2026 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 5 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a slight chance for an M-class flare on days one, two, and three (06 Mar, 07 Mar, 08 Mar). IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 456 km/s at 04/2107Z. Total IMF reached 5 nT at 05/0359Z. The maximum southward component of Bz reached -3 nT at 05/0703Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 581 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (06 Mar) and quiet to active levels on days two and three (07 Mar, 08 Mar). III. Event probabilities 06 Mar-08 Mar Class M 20/20/20 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Mar 146 Predicted 06 Mar-08 Mar 145/140/135 90 Day Mean 05 Mar 145 V. Geomagnetic A Indices Observed Afr/Ap 04 Mar 006/007 Estimated Afr/Ap 05 Mar 005/005 Predicted Afr/Ap 06 Mar-08 Mar 016/022-013/016-011/012 VI. Geomagnetic Activity Probabilities 06 Mar-08 Mar A. Middle Latitudes Active 45/30/30 Minor Storm 25/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 10/15/15 Minor Storm 25/35/35 Major-severe storm 60/40/35