:Product: 0919RSGA.txt :Issued: 2008 Sep 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 Report of Solar and Geophysical Activity SDF Number 263 Issued at 2200Z on 19 Sep 2008 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was very low. No flares were observed during the past 24 hours. The visible solar disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field was mostly quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet for the next three days (20-22 September). III. Event Probabilities 20 Sep-22 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 19 Sep 068 Predicted 20 Sep-22 Sep 067/067/067 90 Day Mean 19 Sep 066 V. Geomagnetic A Indices Observed Afr/Ap 18 Sep 005/009 Estimated Afr/Ap 19 Sep 005/005 Predicted Afr/Ap 20 Sep-22 Sep 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 20 Sep-22 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