:Product: 0531RSGA.txt :Issued: 2009 May 31 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 151 Issued at 2200Z on 31 May 2009 IA. Analysis of Solar Active Regions and Activity from 30/2100Z to 31/2100Z: Solar activity was very low. No flares were observed during the past 24 hours. New Region 1019 (N27E41) formed on the disk and was classified as a Bxo beta spot group. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 30/2100Z to 31/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for 01-02 June. Quiet to unsettled levels, with isolated active conditions possible at high latitudes, are expected on 03 June III. Event Probabilities 01 Jun-03 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 31 May 069 Predicted 01 Jun-03 Jun 070/070/070 90 Day Mean 31 May 070 V. Geomagnetic A Indices Observed Afr/Ap 30 May 002/003 Estimated Afr/Ap 31 May 001/005 Predicted Afr/Ap 01 Jun-03 Jun 005/005-005/005-007/008 VI. Geomagnetic Activity Probabilities 01 Jun-03 Jun A. Middle Latitudes Active 05/05/10 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 05/10/15 Minor storm 01/01/05 Major-severe storm 01/01/01