:Product: 1130RSGA.txt :Issued: 2025 Nov 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 334 Issued at 2200Z on 30 Nov 2025 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity has been at moderate levels for the past 24 hours. There are currently 6 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be moderate with a slight chance for an X-class flare on days one, two, and three (01 Dec, 02 Dec, 03 Dec). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 657 km/s at 30/0231Z. Total IMF reached 6 nT at 30/0152Z. The maximum southward component of Bz reached -6 nT at 30/0102Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 8309 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (01 Dec), quiet levels on day two (02 Dec) and quiet to active levels on day three (03 Dec). Protons have a slight chance of crossing threshold on days one, two, and three (01 Dec, 02 Dec, 03 Dec). III. Event probabilities 01 Dec-03 Dec Class M 70/70/70 Class X 20/20/20 Proton 10/10/10 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Nov 180 Predicted 01 Dec-03 Dec 190/190/190 90 Day Mean 30 Nov 144 V. Geomagnetic A Indices Observed Afr/Ap 29 Nov 012/020 Estimated Afr/Ap 30 Nov 015/016 Predicted Afr/Ap 01 Dec-03 Dec 008/008-005/005-012/015 VI. Geomagnetic Activity Probabilities 01 Dec-03 Dec A. Middle Latitudes Active 20/10/40 Minor Storm 05/01/20 Major-severe storm 01/01/05 B. High Latitudes Active 20/15/10 Minor Storm 25/20/25 Major-severe storm 25/15/60