:Product: 1027RSGA.txt :Issued: 2019 Oct 27 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 300 Issued at 2200Z on 27 Oct 2019 IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: 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 (28 Oct, 29 Oct, 30 Oct). IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 672 km/s at 27/0000Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 36223 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one, two, and three (28 Oct, 29 Oct, 30 Oct). III. Event probabilities 28 Oct-30 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 27 Oct 069 Predicted 28 Oct-30 Oct 070/070/070 90 Day Mean 27 Oct 067 V. Geomagnetic A Indices Observed Afr/Ap 26 Oct 017/021 Estimated Afr/Ap 27 Oct 014/016 Predicted Afr/Ap 28 Oct-30 Oct 010/012-010/012-011/012 VI. Geomagnetic Activity Probabilities 28 Oct-30 Oct A. Middle Latitudes Active 25/30/25 Minor Storm 10/10/10 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/25/25 Major-severe storm 35/40/35