:Product: 20020315RSGA.txt :Issued: 2002 Mar 15 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 074 Issued at 2200Z on 15 Mar 2002 IA. Analysis of Solar Active Regions and Activity from 14/2100Z to 15/2100Z: Solar activity was low. Only a few C-class subflares occurred. Region 9866 (S09W06) has decayed somewhat since yesterday but retains the delta magnetic configuration in the trailer sunspots. Region 9871 (S20E44) has changed little. New Region 9872 (S31E09) emerged on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. M-class activity, possibly including a major flare, remains possible in Region 9866. IIA. Geophysical Activity Summary 14/2100Z to 15/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. III. Event Probabilities 16 Mar-18 Mar Class M 60/50/50 Class X 10/05/05 Proton 05/01/01 PCAF yellow IV. Penticton 10.7 cm Flux Observed 15 Mar 176 Predicted 16 Mar-18 Mar 175/175/170 90 Day Mean 15 Mar 215 V. Geomagnetic A Indices Observed Afr/Ap 14 Mar 002/004 Estimated Afr/Ap 15 Mar 004/005 Predicted Afr/Ap 16 Mar-18 Mar 005/005-008/008-008/010 VI. Geomagnetic Activity Probabilities 16 Mar-18 Mar 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