:Product: 1118RSGA.txt :Issued: 2025 Nov 18 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 322 Issued at 2200Z on 18 Nov 2025 IA. Analysis of Solar Active Regions and Activity from 17/2100Z to 18/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 4 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 (19 Nov, 20 Nov, 21 Nov). IIA. Geophysical Activity Summary 17/2100Z to 18/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 544 km/s at 17/2140Z. Total IMF reached 7 nT at 17/2216Z. The maximum southward component of Bz reached -3 nT at 17/2310Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 921 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (19 Nov, 20 Nov) and quiet to active levels on day three (21 Nov). III. Event probabilities 19 Nov-21 Nov Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 18 Nov 120 Predicted 19 Nov-21 Nov 120/120/120 90 Day Mean 18 Nov 153 V. Geomagnetic A Indices Observed Afr/Ap 17 Nov 009/011 Estimated Afr/Ap 18 Nov 005/005 Predicted Afr/Ap 19 Nov-21 Nov 006/005-006/005-009/012 VI. Geomagnetic Activity Probabilities 19 Nov-21 Nov A. Middle Latitudes Active 15/15/35 Minor Storm 05/05/15 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/10 Minor Storm 20/20/25 Major-severe storm 20/20/50