:Product: 0812RSGA.txt :Issued: 2020 Aug 12 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 225 Issued at 2200Z on 12 Aug 2020 IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 2 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 (13 Aug, 14 Aug, 15 Aug). IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 330 km/s at 12/0745Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1575 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (13 Aug, 14 Aug, 15 Aug). III. Event probabilities 13 Aug-15 Aug Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 12 Aug 073 Predicted 13 Aug-15 Aug 074/074/074 90 Day Mean 12 Aug 070 V. Geomagnetic A Indices Observed Afr/Ap 11 Aug 003/002 Estimated Afr/Ap 12 Aug 003/004 Predicted Afr/Ap 13 Aug-15 Aug 006/005-006/005-005/005 VI. Geomagnetic Activity Probabilities 13 Aug-15 Aug A. Middle Latitudes Active 05/05/05 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/15 Major-severe storm 10/10/10