:Product: 0612RSGA.txt :Issued: 2007 Jun 12 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 163 Issued at 2200Z on 12 Jun 2007 IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity was very low. Region 960 (S05W71) continues to decay and is now classified as a magnetic alpha sunspot group. It produced a B3 flare at 12/1931Z. IB. Solar Activity Forecast: Solar activity is expected to be very low. There remains a chance for an isolated C-class flare from Region 960. IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on 13 June. Expect quiet to active conditions, with isolated minor storm periods possible at high latitudes, on 14-15 June as a recurrent coronal hole rotates into a geoeffective position. III. Event Probabilities 13 Jun-15 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 12 Jun 070 Predicted 13 Jun-15 Jun 070/070/070 90 Day Mean 12 Jun 074 V. Geomagnetic A Indices Observed Afr/Ap 11 Jun 001/002 Estimated Afr/Ap 12 Jun 003/004 Predicted Afr/Ap 13 Jun-15 Jun 005/005-010/015-010/010 VI. Geomagnetic Activity Probabilities 13 Jun-15 Jun A. Middle Latitudes Active 15/25/25 Minor storm 05/15/15 Major-severe storm 01/05/05 B. High Latitudes Active 15/30/30 Minor storm 05/20/20 Major-severe storm 01/10/05