:Product: 0310RSGA.txt :Issued: 2025 Mar 10 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 69 Issued at 2200Z on 10 Mar 2025 IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity has been at very 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 chance for M-class flares on days one, two, and three (11 Mar, 12 Mar, 13 Mar). IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 686 km/s at 10/0630Z. Total IMF reached 7 nT at 10/2014Z. The maximum southward component of Bz reached -5 nT at 09/2121Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2397 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to active levels on days one and three (11 Mar, 13 Mar) and quiet to active levels on day two (12 Mar). III. Event probabilities 11 Mar-13 Mar Class M 30/30/30 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 10 Mar 149 Predicted 11 Mar-13 Mar 160/165/165 90 Day Mean 10 Mar 188 V. Geomagnetic A Indices Observed Afr/Ap 09 Mar 024/030 Estimated Afr/Ap 10 Mar 014/017 Predicted Afr/Ap 11 Mar-13 Mar 015/020-009/012-012/015 VI. Geomagnetic Activity Probabilities 11 Mar-13 Mar A. Middle Latitudes Active 30/30/35 Minor Storm 10/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 30/30/30 Major-severe storm 40/35/45