:Product: 1228RSGA.txt :Issued: 2007 Dec 28 2203 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 362 Issued at 2200Z on 28 Dec 2007 IA. Analysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity was very low. The visible disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to remain very low. IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to remain quiet. III. Event Probabilities 29 Dec-31 Dec Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 28 Dec 072 Predicted 29 Dec-31 Dec 072/072/073 90 Day Mean 28 Dec 072 V. Geomagnetic A Indices Observed Afr/Ap 27 Dec 004/004 Estimated Afr/Ap 28 Dec 005/005 Predicted Afr/Ap 29 Dec-31 Dec 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 29 Dec-31 Dec A. Middle Latitudes Active 10/10/10 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 10/10/10 Minor storm 05/05/05 Major-severe storm 02/02/01