:Product: 0730RSGA.txt :Issued: 2007 Jul 30 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 211 Issued at 2200Z on 30 Jul 2007 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was very low. An asymmetric full halo CME was observed in LASCO data starting at approximately 30/0454Z. This CME is believed to be a backsided event. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field ranged from quiet to active due to a geoeffective coronal hole. Solar wind speed remains elevated at approximately 600 km/s at time of issue. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled with a chance for active periods for the next two days (31 July - 01 August) due to continued coronal hole effects. Expect mostly quiet conditions on 02 August. III. Event Probabilities 31 Jul-02 Aug Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 30 Jul 069 Predicted 31 Jul-02 Aug 070/070/070 90 Day Mean 30 Jul 073 V. Geomagnetic A Indices Observed Afr/Ap 29 Jul 011/014 Estimated Afr/Ap 30 Jul 010/015 Predicted Afr/Ap 31 Jul-02 Aug 008/010-010/010-005/005 VI. Geomagnetic Activity Probabilities 31 Jul-02 Aug A. Middle Latitudes Active 15/20/10 Minor storm 05/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/15 Minor storm 05/05/01 Major-severe storm 01/01/01