:Product: 1229RSGA.txt :Issued: 2007 Dec 29 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 363 Issued at 2200Z on 29 Dec 2007 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity was very low. The visible disk remained spotless. IB. Solar Activity Forecast: Solar activity is expected to remain very low. IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electrons at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to remain quiet. III. Event Probabilities 30 Dec-01 Jan Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 29 Dec 073 Predicted 30 Dec-01 Jan 072/073/075 90 Day Mean 29 Dec 072 V. Geomagnetic A Indices Observed Afr/Ap 28 Dec 002/002 Estimated Afr/Ap 29 Dec 005/005 Predicted Afr/Ap 30 Dec-01 Jan 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 30 Dec-01 Jan A. Middle Latitudes Active 10/10/10 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/10 Minor storm 05/05/05 Major-severe storm 12/02/01