:Product: 1111RSGA.txt :Issued: 2021 Nov 11 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 315 Issued at 2200Z on 11 Nov 2021 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a slight chance for a C-class flare on days one, two, and three (12 Nov, 13 Nov, 14 Nov). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 426 km/s at 10/2130Z. Total IMF reached 6 nT at 11/2028Z. The maximum southward component of Bz reached -3 nT at 11/1113Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 962 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (12 Nov, 13 Nov, 14 Nov). III. Event probabilities 12 Nov-14 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 11 Nov 085 Predicted 12 Nov-14 Nov 086/085/085 90 Day Mean 11 Nov 087 V. Geomagnetic A Indices Observed Afr/Ap 10 Nov 005/005 Estimated Afr/Ap 11 Nov 004/005 Predicted Afr/Ap 12 Nov-14 Nov 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 12 Nov-14 Nov A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor Storm 20/20/20 Major-severe storm 10/10/10