:Product: 1030RSGA.txt :Issued: 2025 Oct 30 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 303 Issued at 2200Z on 30 Oct 2025 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: 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 very low with a chance for a C-class flares on days one and two (31 Oct, 01 Nov) and likely to be low with a slight chance for an M-class flare on day three (02 Nov). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field has been at unsettled to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 677 km/s at 30/2040Z. Total IMF reached 15 nT at 30/1012Z. The maximum southward component of Bz reached -14 nT at 30/1023Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 393 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to active levels on day one (31 Oct) and quiet to unsettled levels on days two and three (01 Nov, 02 Nov). III. Event probabilities 31 Oct-02 Nov Class M 05/05/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Oct 120 Predicted 31 Oct-02 Nov 120/130/130 90 Day Mean 30 Oct 151 V. Geomagnetic A Indices Observed Afr/Ap 29 Oct 015/020 Estimated Afr/Ap 30 Oct 027/036 Predicted Afr/Ap 31 Oct-02 Nov 014/018-008/010-007/008 VI. Geomagnetic Activity Probabilities 31 Oct-02 Nov A. Middle Latitudes Active 35/20/15 Minor Storm 15/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 10/15/15 Minor Storm 30/30/25 Major-severe storm 50/25/25