:Product: 1025RSGA.txt :Issued: 2018 Oct 25 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 298 Issued at 2200Z on 25 Oct 2018 IA. Analysis of Solar Active Regions and Activity from 24/2100Z to 25/2100Z: 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 (26 Oct, 27 Oct, 28 Oct). IIA. Geophysical Activity Summary 24/2100Z to 25/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 371 km/s at 24/2341Z. Total IMF reached 5 nT at 25/1436Z. The maximum southward component of Bz reached -4 nT at 25/1402Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (26 Oct, 27 Oct, 28 Oct). III. Event probabilities 26 Oct-28 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 25 Oct 069 Predicted 26 Oct-28 Oct 068/068/068 90 Day Mean 25 Oct 069 V. Geomagnetic A Indices Observed Afr/Ap 24 Oct 002/004 Estimated Afr/Ap 25 Oct 008/008 Predicted Afr/Ap 26 Oct-28 Oct 005/005-006/005-005/005 VI. Geomagnetic Activity Probabilities 26 Oct-28 Oct 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