:Product: 0830RSGA.txt :Issued: 2018 Aug 30 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 242 Issued at 2200Z on 30 Aug 2018 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: 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 (31 Aug, 01 Sep, 02 Sep). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 517 km/s at 29/2128Z. Total IMF reached 5 nT at 30/2058Z. The maximum southward component of Bz reached -2 nT at 30/1834Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 56173 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (31 Aug, 01 Sep, 02 Sep). III. Event probabilities 31 Aug-02 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Aug 068 Predicted 31 Aug-02 Sep 068/068/068 90 Day Mean 30 Aug 070 V. Geomagnetic A Indices Observed Afr/Ap 29 Aug 007/006 Estimated Afr/Ap 30 Aug 005/005 Predicted Afr/Ap 31 Aug-02 Sep 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 31 Aug-02 Sep A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/15 Major-severe storm 20/15/10