:Product: 20010530RSGA.txt :Issued: 2001 May 30 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 150 Issued at 2200Z on 30 May 2001 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was very low. Region 9475 (N19E19) grew in area and spot count, but lost the weak delta configuration which was visible yesterday. A new region was numbered today as Region 9482 (S16E48). IB. Solar Activity Forecast: Solar activity is expected to be low. Occasional C-class flares are possible. IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. III. Event Probabilities 31 May-02 Jun Class M 20/20/20 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 May 132 Predicted 31 May-02 Jun 130/130/130 90 Day Mean 30 May 151 V. Geomagnetic A Indices Observed Afr/Ap 29 May 009/010 Estimated Afr/Ap 30 May 005/005 Predicted Afr/Ap 31 May-02 Jun 008/008-008/010-008/012 VI. Geomagnetic Activity Probabilities 31 May-02 Jun A. Middle Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/25 Minor storm 05/05/05 Major-severe storm 01/01/01