:Product: 20010529RSGA.txt :Issued: 2001 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 2001 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity has been low. Region 9475 (N18E34) produced the only minor C-class events. This region has doubled its growth since yesterday with an area of 100 millionths and has developed a delta configuration within the trailing portion of the spot group. IB. Solar Activity Forecast: Solar activity is expected to be low. Additional C-class flares are likely. IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field has been quiet to active. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for the forecast period. III. Event Probabilities 30 May-01 Jun Class M 20/20/20 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 29 May 139 Predicted 30 May-01 Jun 135/135/135 90 Day Mean 29 May 169 V. Geomagnetic A Indices Observed Afr/Ap 28 May 014/018 Estimated Afr/Ap 29 May 010/012 Predicted Afr/Ap 30 May-01 Jun 008/010-008/010-008/010 VI. Geomagnetic Activity Probabilities 30 May-01 Jun 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