:Product: 1126RSGA.txt :Issued: 2025 Nov 26 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 330 Issued at 2200Z on 26 Nov 2025 IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity has been at 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 slight chance for an M-class flare on days one, two, and three (27 Nov, 28 Nov, 29 Nov). IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field has been at unsettled to active levels for the past 24 hours. Solar wind speed reached a peak of 838 km/s at 26/0924Z. Total IMF reached 8 nT at 25/2121Z. The maximum southward component of Bz reached -6 nT at 26/0557Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 10063 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at active to minor storm levels on day one (27 Nov), active levels on day two (28 Nov) and quiet to unsettled levels on day three (29 Nov). III. Event probabilities 27 Nov-29 Nov Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 26 Nov 120 Predicted 27 Nov-29 Nov 120/125/125 90 Day Mean 26 Nov 148 V. Geomagnetic A Indices Observed Afr/Ap 25 Nov 017/032 Estimated Afr/Ap 26 Nov 020/026 Predicted Afr/Ap 27 Nov-29 Nov 021/030-018/025-009/012 VI. Geomagnetic Activity Probabilities 27 Nov-29 Nov A. Middle Latitudes Active 45/25/25 Minor Storm 25/10/10 Major-severe storm 05/01/01 B. High Latitudes Active 10/15/15 Minor Storm 25/25/25 Major-severe storm 70/35/35