:Product: 0830RSGA.txt :Issued: 2009 Aug 30 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 242 Issued at 2200Z on 30 Aug 2009 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was very low. No spots and no flares were observed on the visible disk. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was at quiet to minor storm conditions. The solar wind increased from 350 to 450 km/s. The Bz varied from +10 to -10 through the UT day. This activity was due to the onset of a southern coronal hole high speed stream becoming geoeffective. IIB. Geophysical Activity Forecast: The geomagnetic field will be quiet to unsettled with isolated periods of active conditions possible on day one (31 August) and mostly quiet for the remainder of the forecast period (1 - 2 September). III. Event Probabilities 31 Aug-02 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Aug 067 Predicted 31 Aug-02 Sep 068/068/068 90 Day Mean 30 Aug 068 V. Geomagnetic A Indices Observed Afr/Ap 29 Aug 002/002 Estimated Afr/Ap 30 Aug 012/015 Predicted Afr/Ap 31 Aug-02 Sep 007/010-005/005-005/005 VI. Geomagnetic Activity Probabilities 31 Aug-02 Sep A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01