:Product: 0904RSGA.txt :Issued: 2007 Sep 04 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 247 Issued at 2200Z on 04 Sep 2007 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity was very low. A single low-level B-class flare was observed during the past 24 hours. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field was quiet to unsettled. The greater than 2 MeV electron flux at geosynchronous orbit remained at high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on 05 September. Expect quiet to active conditions, with isolated minor storm periods possible at high latitudes, on 06 September due to a recurrent coronal hole. Mostly quiet to unsettled conditions are expected to return on 07 September. III. Event Probabilities 05 Sep-07 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 04 Sep 068 Predicted 05 Sep-07 Sep 068/068/068 90 Day Mean 04 Sep 071 V. Geomagnetic A Indices Observed Afr/Ap 03 Sep 008/012 Estimated Afr/Ap 04 Sep 005/006 Predicted Afr/Ap 05 Sep-07 Sep 005/005-010/015-006/010 VI. Geomagnetic Activity Probabilities 05 Sep-07 Sep A. Middle Latitudes Active 10/35/15 Minor storm 05/15/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/35/25 Minor storm 05/20/10 Major-severe storm 01/10/05