:Product: 1025RSGA.txt :Issued: 2025 Oct 25 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 298 Issued at 2200Z on 25 Oct 2025 IA. Analysis of Solar Active Regions and Activity from 24/2100Z to 25/2100Z: 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 slight chance for an M-class flare on days one, two, and three (26 Oct, 27 Oct, 28 Oct). IIA. Geophysical Activity Summary 24/2100Z to 25/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 589 km/s at 24/2105Z. Total IMF reached 6 nT at 24/2105Z. The maximum southward component of Bz reached -6 nT at 25/0353Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 605 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (26 Oct), quiet to active levels on day two (27 Oct) and active to minor storm levels on day three (28 Oct). III. Event probabilities 26 Oct-28 Oct Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 25 Oct 127 Predicted 26 Oct-28 Oct 130/125/125 90 Day Mean 25 Oct 153 V. Geomagnetic A Indices Observed Afr/Ap 24 Oct 008/010 Estimated Afr/Ap 25 Oct 009/011 Predicted Afr/Ap 26 Oct-28 Oct 007/008-010/012-024/035 VI. Geomagnetic Activity Probabilities 26 Oct-28 Oct A. Middle Latitudes Active 15/30/35 Minor Storm 01/15/35 Major-severe storm 01/01/15 B. High Latitudes Active 15/15/05 Minor Storm 25/30/20 Major-severe storm 20/45/75