:Product: 20020529RSGA.txt :Issued: 2002 May 29 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 149 Issued at 2200Z on 29 May 2002 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity was at low levels. The largest event was an optically uncorrelated long duration C8 flare at 29/0246 UTC. Region 9972 (S21E44) produced a C8/Sf at 29/0519 UTC and has shown slight growth. Region 9961 (S21W59) has simplified in magnetic complexity while Region 9963 (N16W43) has remained relatively unchanged since yesterday. Region 9973 (S16E61) has developed a beta-gamma magnetic configuration and a 960 millionths area coverage. Two new regions were numbered today: Region 9974 (N18E58) and Region 9975 (N23E63). IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Region 9963 has the potential for low level M-class activity. Region 9973 has the potential for low level M-class activity and a slight chance of producing a major event. IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field was at quiet to unsettled levels. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. III. Event Probabilities 30 May-01 Jun Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 29 May 185 Predicted 30 May-01 Jun 185/190/190 90 Day Mean 29 May 183 V. Geomagnetic A Indices Observed Afr/Ap 28 May 008/012 Estimated Afr/Ap 29 May 008/012 Predicted Afr/Ap 30 May-01 Jun 008/015-008/010-005/010 VI. Geomagnetic Activity Probabilities 30 May-01 Jun A. Middle Latitudes Active 20/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 25/20/20 Minor storm 05/05/05 Major-severe storm 01/01/01