:Product: 0530RSGA.txt :Issued: 2007 May 30 2203 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 2007 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity increased to low levels today. Region 958 (S13E49) continues to show decay. A C2 x-ray flare occurred at 30/1349Z and it is believed to have had a source region just off the east limb near S09E90. No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be at very low to low levels. IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was at quiet levels. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at predominantly quiet levels throughout the forecast period. III. Event Probabilities 31 May-02 Jun Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 30 May 071 Predicted 31 May-02 Jun 072/074/075 90 Day Mean 30 May 073 V. Geomagnetic A Indices Observed Afr/Ap 29 May 005/004 Estimated Afr/Ap 30 May 005/005 Predicted Afr/Ap 31 May-02 Jun 003/005-003/005-003/005 VI. Geomagnetic Activity Probabilities 31 May-02 Jun A. Middle Latitudes Active 15/15/15 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01