:Product: 0731RSGA.txt :Issued: 2007 Jul 31 2202 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 212 Issued at 2200Z on 31 Jul 2007 IA. Analysis of Solar Active Regions and Activity from 30/2100Z to 31/2100Z: Solar activity was very low. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 30/2100Z to 31/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled with a chance for isolated active periods on 01 August due to continued coronal hole effects. Expect mostly quiet conditions on 02 - 03 August. III. Event Probabilities 01 Aug-03 Aug Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 31 Jul 068 Predicted 01 Aug-03 Aug 070/070/070 90 Day Mean 31 Jul 073 V. Geomagnetic A Indices Observed Afr/Ap 30 Jul 010/010 Estimated Afr/Ap 31 Jul 005/008 Predicted Afr/Ap 01 Aug-03 Aug 008/010-005/005-005/005 VI. Geomagnetic Activity Probabilities 01 Aug-03 Aug A. Middle Latitudes Active 15/10/10 Minor storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 25/15/15 Minor storm 05/01/01 Major-severe storm 01/01/01