:Product: 0131RSGA.txt :Issued: 2010 Jan 31 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 031 Issued at 2200Z on 31 Jan 2010 IA. Analysis of Solar Active Regions and Activity from 30/2100Z to 31/2100Z: Solar activity was very low. Region 1041 (S27E24) is spotless today. Region 1043 (N25E24) is a D-type spot group with a beta magnetic classification. This region has produced several low-level B-type flares during the last 24 hours. IB. Solar Activity Forecast: Solar activity is expected to be very low to low with a chance for a C-flare from Region 1043. IIA. Geophysical Activity Summary 30/2100Z to 31/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days (01-03 January). III. Event Probabilities 01 Feb-03 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 31 Jan 075 Predicted 01 Feb-03 Feb 076/078/080 90 Day Mean 31 Jan 077 V. Geomagnetic A Indices Observed Afr/Ap 30 Jan 003/004 Estimated Afr/Ap 31 Jan 003/004 Predicted Afr/Ap 01 Feb-03 Feb 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 01 Feb-03 Feb 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