:Product: 0911RSGA.txt :Issued: 2007 Sep 11 2203 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 254 Issued at 2200Z on 11 Sep 2007 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity continues at very low levels. The visible solar disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to continue at very low levels. IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field continues at quiet levels. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels again today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on 12 and 13 September. Occasional unsettled periods are possible on 14 September. III. Event Probabilities 12 Sep-14 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 11 Sep 066 Predicted 12 Sep-14 Sep 067/067/067 90 Day Mean 11 Sep 070 V. Geomagnetic A Indices Observed Afr/Ap 10 Sep 002/002 Estimated Afr/Ap 11 Sep 002/003 Predicted Afr/Ap 12 Sep-14 Sep 005/005-005/005-005/008 VI. Geomagnetic Activity Probabilities 12 Sep-14 Sep A. Middle Latitudes Active 05/05/10 Minor storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/20 Minor storm 05/05/10 Major-severe storm 01/01/01