:Product: 0804RSGA.txt :Issued: 2009 Aug 04 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 216 Issued at 2200Z on 04 Aug 2009 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity was very low. No flares occurred during the past 24 hours. The visible disk was spotless. 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. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet to unsettled with a slight chance for isolated active periods on days one and two of the forecast period (05 - 06 August) as a recurrent coronal hole high speed stream becomes geoeffective. Day three (07 August) is expected to be quiet. III. Event Probabilities 05 Aug-07 Aug Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 04 Aug 066 Predicted 05 Aug-07 Aug 067/067/067 90 Day Mean 04 Aug 069 V. Geomagnetic A Indices Observed Afr/Ap 03 Aug 007/010 Estimated Afr/Ap 04 Aug 003/005 Predicted Afr/Ap 05 Aug-07 Aug 007/007-007/007-005/005 VI. Geomagnetic Activity Probabilities 05 Aug-07 Aug A. Middle Latitudes Active 20/20/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/10 Minor storm 05/05/01 Major-severe storm 01/01/01