:Product: 0307RSGA.txt :Issued: 2025 Mar 07 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 66 Issued at 2200Z on 07 Mar 2025 IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1 event observed at 07/2100Z from Region 4016 (S26E09). 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 (08 Mar, 09 Mar, 10 Mar). IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 849 km/s at 07/0536Z. Total IMF reached 9 nT at 07/0759Z. The maximum southward component of Bz reached -7 nT at 07/0613Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1027 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (08 Mar), quiet to minor storm levels on day two (09 Mar) and unsettled to minor storm levels on day three (10 Mar). III. Event probabilities 08 Mar-10 Mar Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 07 Mar 147 Predicted 08 Mar-10 Mar 150/150/155 90 Day Mean 07 Mar 188 V. Geomagnetic A Indices Observed Afr/Ap 06 Mar 006/006 Estimated Afr/Ap 07 Mar 008/008 Predicted Afr/Ap 08 Mar-10 Mar 008/012-015/020-019/025 VI. Geomagnetic Activity Probabilities 08 Mar-10 Mar A. Middle Latitudes Active 30/40/40 Minor Storm 05/25/30 Major-severe storm 01/05/05 B. High Latitudes Active 15/10/10 Minor Storm 30/25/25 Major-severe storm 35/60/65