:Product: 0901RSGA.txt :Issued: 2010 Sep 01 2201 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 244 Issued at 2200Z on 01 Sep 2010 IA. Analysis of Solar Active Regions and Activity from 31/2100Z to 01/2100Z: Solar activity has been at very low levels for the past 24 hours. Region 1101 (N12W32) and Region 1102 (N26W52) grew in areal coverage but remained stable and quiet. New Regions 1103 (N25W32) and 1104 (N24W27) developed late in the period and are both magnetically classified as beta groups. IB. Solar Activity Forecast: Solar activity is expected to be at very low levels with a slight chance for C-class events for the next three days (02-04 September). IIA. Geophysical Activity Summary 31/2100Z to 01/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels throughout the period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels for the next three days (02-04 September). III. Event Probabilities 02 Sep-04 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 01 Sep 076 Predicted 02 Sep-04 Sep 076/076/077 90 Day Mean 01 Sep 078 V. Geomagnetic A Indices Observed Afr/Ap 31 Aug 002/002 Estimated Afr/Ap 01 Sep 002/005 Predicted Afr/Ap 02 Sep-04 Sep 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 02 Sep-04 Sep A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01