:Product: 0125RSGA.txt :Issued: 2026 Jan 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 25 Issued at 2200Z on 25 Jan 2026 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 9 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 (26 Jan, 27 Jan, 28 Jan). IIA. Geophysical Activity Summary 24/2100Z to 25/2100Z: The geomagnetic field has been at unsettled levels for the past 24 hours. Solar wind speed reached a peak of 645 km/s at 25/0954Z. Total IMF reached 7 nT at 25/0334Z. The maximum southward component of Bz reached -5 nT at 25/0512Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 6154 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (26 Jan), quiet to unsettled levels on day two (27 Jan) and unsettled to minor storm levels on day three (28 Jan). III. Event probabilities 26 Jan-28 Jan Class M 45/40/35 Class X 05/05/01 Proton 05/05/01 PCAF green IV. Penticton 10.7 cm Flux Observed 25 Jan 165 Predicted 26 Jan-28 Jan 160/150/145 90 Day Mean 25 Jan 150 V. Geomagnetic A Indices Observed Afr/Ap 24 Jan 012/017 Estimated Afr/Ap 25 Jan 014/017 Predicted Afr/Ap 26 Jan-28 Jan 008/008-008/008-018/024 VI. Geomagnetic Activity Probabilities 26 Jan-28 Jan A. Middle Latitudes Active 20/20/40 Minor Storm 05/05/25 Major-severe storm 01/01/05 B. High Latitudes Active 20/20/10 Minor Storm 25/25/25 Major-severe storm 25/25/65