:Product: 20050213RSGA.txt :Issued: 2005 Feb 13 2200 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 044 Issued at 2200Z on 13 Feb 2005 IA. Analysis of Solar Active Regions and Activity from 12/2100Z to 13/2100Z: Solar activity was low. Region 733 (S09E01) generated the day's largest event, a C2 x-ray flare at 1040UTC with associated Type II sweep. At this time there is no indication of a CME. Region 734 (S04E17) had the other C-class flare, a C1/Sf at 1458UTC. Region 733 is the most dynamic of the five regions currently visible. The remainder of the disk and limbs were quiet and unimpressive. IB. Solar Activity Forecast: Solar activity is expected to be low. Region 733 may produce additional C-class activity. IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at GOES was high. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled throughout the forecast period. III. Event Probabilities 14 Feb-16 Feb Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 13 Feb 116 Predicted 14 Feb-16 Feb 115/115/115 90 Day Mean 13 Feb 100 V. Geomagnetic A Indices Observed Afr/Ap 12 Feb 003/005 Estimated Afr/Ap 13 Feb 003/004 Predicted Afr/Ap 14 Feb-16 Feb 005/008-005/008-005/005 VI. Geomagnetic Activity Probabilities 14 Feb-16 Feb A. Middle Latitudes Active 20/20/20 Minor storm 10/10/10 Major-severe storm 05/05/05 B. High Latitudes Active 25/25/25 Minor storm 10/10/10 Major-severe storm 05/05/05