:Product: 0806RSGA.txt :Issued: 2005 Aug 06 2204 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 218 Issued at 2200Z on 06 Aug 2005 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was low. Region 794 (S12W10) produced a C1.1 flare at 05/2044 UTC. Region 792 (N10W41) has decayed into a Cso group. Region 795 (N12E00) has developed into a Cso Beta group. IB. Solar Activity Forecast: Solar activity is expected to be low. IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field ranged from unsettled to minor storm levels. Minor storming was observed at high latitudes between 06/0000 - 1200 UTC. Solar wind data indicate the onset of a coronal hole high speed stream beginning about 05/2200. The solar wind speed remains elevated at approximately 550 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 at unsettled to active levels with a chance for minor storm conditions for the next three days (07-09 August). III. Event Probabilities 07 Aug-09 Aug Class M 30/30/30 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Aug 093 Predicted 07 Aug-09 Aug 095/095/095 90 Day Mean 06 Aug 096 V. Geomagnetic A Indices Observed Afr/Ap 05 Aug 006/009 Estimated Afr/Ap 06 Aug 022/030 Predicted Afr/Ap 07 Aug-09 Aug 012/015-010/012-010/015 VI. Geomagnetic Activity Probabilities 07 Aug-09 Aug A. Middle Latitudes Active 25/20/20 Minor storm 10/10/10 Major-severe storm 05/05/05 B. High Latitudes Active 30/25/30 Minor storm 15/10/15 Major-severe storm 10/05/10