:Product: 0830RSGA.txt :Issued: 2012 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 243 Issued at 2200Z on 30 Aug 2012 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was moderate. A region around the east limb produced an M1 flare at 1211Z along with multiple C-class flares. No Earth-directed CMEs were observed in the past 24 hours. New Regions 1562 (S16E56) and 1563 (S25E71) were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for moderate activity. IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: Geomagnetic activity was at mostly quiet levels. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the period. IIB. Geophysical Activity Forecast: Geomagnetic activity is expected to be quiet to unsettled on 31 August and 1 September with a chance for minor to major storm levels at high latitudes. Activity is expected to return to mostly quiet levels on 2 September with a slight chance for active to minor storm levels at high latitudes. Increased activity on days 1 and 2 is due to a coronal hole high speed stream. III. Event Probabilities 31 Aug-02 Sep Class M 40/40/40 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 30 Aug 128 Predicted 31 Aug-02 Sep 130/130/130 90 Day Mean 30 Aug 124 V. Geomagnetic A Indices Observed Afr/Ap 29 Aug 005/004 Estimated Afr/Ap 30 Aug 005/005 Predicted Afr/Ap 31 Aug-02 Sep 010/010-007/008-006/005 VI. Geomagnetic Activity Probabilities 31 Aug-02 Sep A. Middle Latitudes Active 15/10/05 Minor storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor storm 25/15/15 Major-severe storm 20/05/05