:Product: 1211RSGA.txt :Issued: 2009 Dec 11 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 345 Issued at 2200Z on 11 Dec 2009 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity was very low. No flares were observed during the forecast period. Region 1034 (N20E45) remains a small Bxo Beta group. IB. Solar Activity Forecast: Solar activity is expected to be very low to low. There is a chance for an isolated C-class event from Region 1034 during the next three days (12-14 December). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field has been quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days (12-14 December). III. Event Probabilities 12 Dec-14 Dec Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 11 Dec 072 Predicted 12 Dec-14 Dec 077/077/077 90 Day Mean 11 Dec 072 V. Geomagnetic A Indices Observed Afr/Ap 10 Dec 001/001 Estimated Afr/Ap 11 Dec 005/005 Predicted Afr/Ap 12 Dec-14 Dec 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 12 Dec-14 Dec 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