:Product: 1004RSGA.txt :Issued: 2020 Oct 04 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 278 Issued at 2200Z on 04 Oct 2020 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (05 Oct, 06 Oct, 07 Oct). IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 423 km/s at 03/2328Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 26522 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (05 Oct, 06 Oct, 07 Oct). III. Event probabilities 05 Oct-07 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 04 Oct 071 Predicted 05 Oct-07 Oct 071/070/070 90 Day Mean 04 Oct 071 V. Geomagnetic A Indices Observed Afr/Ap 03 Oct 005/005 Estimated Afr/Ap 04 Oct 005/005 Predicted Afr/Ap 05 Oct-07 Oct 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 05 Oct-07 Oct 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