:Product: 0921RSGA.txt :Issued: 2008 Sep 21 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 Report of Solar and Geophysical Activity SDF Number 265 Issued at 2200Z on 21 Sep 2008 IA. Analysis of Solar Active Regions and Activity from 20/2100Z to 21/2100Z: Solar activity was very low. No flares were observed during the past 24 hours. The visible disk remained spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to remain at quiet levels for the forecast period (22 - 24 September). III. Event Probabilities 22 Sep-24 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 21 Sep 068 Predicted 22 Sep-24 Sep 067/067/067 90 Day Mean 21 Sep 066 V. Geomagnetic A Indices Observed Afr/Ap 20 Sep 001/003 Estimated Afr/Ap 21 Sep 002/005 Predicted Afr/Ap 22 Sep-24 Sep 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 22 Sep-24 Sep A. Middle Latitudes Active 10/10/10 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 10/10/10 Minor storm 01/01/01 Major-severe storm 01/01/01