:Product: 1205RSGA.txt :Issued: 2008 Dec 05 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 340 Issued at 2200Z on 05 Dec 2008 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: Solar activity was very low. IB. Solar Activity Forecast: Solar activity is expected to remain very low. IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: The geomagnetic field activity was mostly quiet. One period of active to minor storm conditions was observed between 0900-1200Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled on day one (6 December), followed by quiet conditions for the remainder of the forecast period (7-8 Dec) as the high speed stream subsides. III. Event Probabilities 06 Dec-08 Dec Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 05 Dec 069 Predicted 06 Dec-08 Dec 070/070/070 90 Day Mean 05 Dec 068 V. Geomagnetic A Indices Observed Afr/Ap 04 Dec 004/006 Estimated Afr/Ap 05 Dec 011/015 Predicted Afr/Ap 06 Dec-08 Dec 007/010-005/005-005/005 VI. Geomagnetic Activity Probabilities 06 Dec-08 Dec A. Middle Latitudes Active 15/05/05 Minor storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/05/05 Minor storm 10/01/01 Major-severe storm 04/01/00