:Product: 0530RSGA.txt :Issued: 2012 May 30 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 30 May 2012 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity was low during the past 24 hours. A C1 x-ray event was observed at 30/0850Z from a region around the east limb. All spot groups on the disk remained relatively quiet and stable. No Earth-directed CMEs were observed during the period. IB. Solar Activity Forecast: Solar activity is expected to be very low to low with C-class activity likely for the next three days (31 May - 02 June). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic field was quiet for the past 24 hours. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be mostly quiet for the next three days (31 May - 02 June). III. Event Probabilities 31 May-02 Jun Class M 01/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 May 111 Predicted 31 May-02 Jun 110/110/110 90 Day Mean 30 May 117 V. Geomagnetic A Indices Observed Afr/Ap 29 May 005/005 Estimated Afr/Ap 30 May 007/007 Predicted Afr/Ap 31 May-02 Jun 004/005-004/005-004/005 VI. Geomagnetic Activity Probabilities 31 May-02 Jun A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor storm 15/15/15 Major-severe storm 05/05/05