:Product: 0613RSGA.txt :Issued: 2007 Jun 14 0041 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 164 Issued at 2200Z on 13 Jun 2007 IA. Analysis of Solar Active Regions and Activity from 12/2100Z to 13/2100Z: Solar activity was very low. Region 960 (S05W85) produced A B4 flare at 13/1347Z. IB. Solar Activity Forecast: Solar activity is expected to be very low. There is a slight chance of a C-class flare from Region 960. IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field was quiet to unsettled. An apparent solar sector boundary crossing occurred at 13/1800Z. Solar wind speed increased from approximately 310 km/s to 420 km/s at forecast issue time. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to range from quiet to active levels on 14-15 June, with isolated minor storm periods possible at high latitudes, due to a recurrent coronal hole high speed stream. Quiet to unsettled conditions are expected on 16 June. III. Event Probabilities 14 Jun-16 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 13 Jun 071 Predicted 14 Jun-16 Jun 070/070/070 90 Day Mean 13 Jun 074 V. Geomagnetic A Indices Observed Afr/Ap 12 Jun 003/004 Estimated Afr/Ap 13 Jun 004/005 Predicted Afr/Ap 14 Jun-16 Jun 010/015-010/010-005/005 VI. Geomagnetic Activity Probabilities 14 Jun-16 Jun A. Middle Latitudes Active 25/25/20 Minor storm 15/15/10 Major-severe storm 05/05/01 B. High Latitudes Active 30/30/25 Minor storm 20/20/15 Major-severe storm 10/05/01