:Product: 1119RSGA.txt :Issued: 2018 Nov 19 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 323 Issued at 2200Z on 19 Nov 2018 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low on days one, two, and three (20 Nov, 21 Nov, 22 Nov). IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 350 km/s at 19/1704Z. Total IMF reached 8 nT at 18/2222Z. The maximum southward component of Bz reached -7 nT at 18/2227Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 753 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (20 Nov, 21 Nov) and quiet levels on day three (22 Nov). III. Event probabilities 20 Nov-22 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 19 Nov 071 Predicted 20 Nov-22 Nov 071/071/071 90 Day Mean 19 Nov 069 V. Geomagnetic A Indices Observed Afr/Ap 18 Nov 002/002 Estimated Afr/Ap 19 Nov 004/005 Predicted Afr/Ap 20 Nov-22 Nov 007/008-010/010-006/005 VI. Geomagnetic Activity Probabilities 20 Nov-22 Nov A. Middle Latitudes Active 10/20/10 Minor Storm 01/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/25/25 Major-severe storm 20/30/20