:Product: 1106RSGA.txt :Issued: 2021 Nov 06 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 310 Issued at 2200Z on 06 Nov 2021 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C2 event observed at 05/2157Z from Region 2894 (S27E66). There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (07 Nov, 08 Nov, 09 Nov). IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 634 km/s at 06/0132Z. Total IMF reached 10 nT at 06/0006Z. The maximum southward component of Bz reached -4 nT at 06/1606Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1633 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (07 Nov, 08 Nov) and quiet levels on day three (09 Nov). III. Event probabilities 07 Nov-09 Nov Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Nov 082 Predicted 07 Nov-09 Nov 085/085/082 90 Day Mean 06 Nov 086 V. Geomagnetic A Indices Observed Afr/Ap 05 Nov 009/010 Estimated Afr/Ap 06 Nov 014/016 Predicted Afr/Ap 07 Nov-09 Nov 008/008-008/008-006/005 VI. Geomagnetic Activity Probabilities 07 Nov-09 Nov A. Middle Latitudes Active 20/20/10 Minor Storm 05/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/20 Minor Storm 25/25/20 Major-severe storm 25/25/10