:Product: 0801RSGA.txt :Issued: 2007 Aug 01 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 213 Issued at 2200Z on 01 Aug 2007 IA. Analysis of Solar Active Regions and Activity from 31/2100Z to 01/2100Z: Solar activity was very low. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 31/2100Z to 01/2100Z: The geomagnetic field ranged from quiet to unsettled with two active periods. Minor storming was observed at mid-latitudes due to a recurrent coronal hole high speed stream. Solar wind speed remains above 600 km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for 02 August. There remains a chance for isolated active periods. The geomagnetic field is expected to abate to quiet for 03 - 04 August. III. Event Probabilities 02 Aug-04 Aug Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 01 Aug 068 Predicted 02 Aug-04 Aug 070/070/070 90 Day Mean 01 Aug 073 V. Geomagnetic A Indices Observed Afr/Ap 31 Jul 004/006 Estimated Afr/Ap 01 Aug 014/015 Predicted Afr/Ap 02 Aug-04 Aug 008/008-005/005-004/005 VI. Geomagnetic Activity Probabilities 02 Aug-04 Aug A. Middle Latitudes Active 25/15/15 Minor storm 10/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 30/20/20 Minor storm 15/10/10 Major-severe storm 05/01/01