:Product: 1128RSGA.txt :Issued: 2020 Nov 28 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 333 Issued at 2200Z on 28 Nov 2020 IA. Analysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: 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 likely to be low with a slight chance for an M-class flare on days one, two, and three (29 Nov, 30 Nov, 01 Dec). IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 487 km/s at 28/0004Z. Total IMF reached 6 nT at 28/1454Z. The maximum southward component of Bz reached -5 nT at 28/0139Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1673 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (29 Nov, 30 Nov, 01 Dec). III. Event probabilities 29 Nov-01 Dec Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 28 Nov 110 Predicted 29 Nov-01 Dec 108/108/106 90 Day Mean 28 Nov 078 V. Geomagnetic A Indices Observed Afr/Ap 27 Nov 007/007 Estimated Afr/Ap 28 Nov 009/010 Predicted Afr/Ap 29 Nov-01 Dec 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 29 Nov-01 Dec 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