:Product: 0513RSGA.txt :Issued: 2007 May 13 2203 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 133 Issued at 2200Z on 13 May 2007 IA. Analysis of Solar Active Regions and Activity from 12/2100Z to 13/2100Z: Solar activity was very low. IB. Solar Activity Forecast: Solar activity is expected to be very low to low. C-class activity is possible in Region 955 (S09W35). IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet. III. Event Probabilities 14 May-16 May Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 13 May 074 Predicted 14 May-16 May 072/072/072 90 Day Mean 13 May 074 V. Geomagnetic A Indices Observed Afr/Ap 12 May 002/003 Estimated Afr/Ap 13 May 003/005 Predicted Afr/Ap 14 May-16 May 005/005-005/008-005/005 VI. Geomagnetic Activity Probabilities 14 May-16 May A. Middle Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor storm 05/05/05 Major-severe storm 01/01/01