:Product: 0627RSGA.txt :Issued: 2007 Jun 27 2136 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 178 Issued at 2200Z on 27 Jun 2007 IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: Solar activity was low. A C1 flare occurred at 27/1800Z. IB. Solar Activity Forecast: Solar activity is expected to be very low to low. There is a slight chance for an isolated M-class flare. IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. Isolated active periods are possible on 30 June due to a recurrent coronal hole high speed stream. III. Event Probabilities 28 Jun-30 Jun Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 27 Jun 073 Predicted 28 Jun-30 Jun 080/080/080 90 Day Mean 27 Jun 074 V. Geomagnetic A Indices Observed Afr/Ap 26 Jun 004/005 Estimated Afr/Ap 27 Jun 005/005 Predicted Afr/Ap 28 Jun-30 Jun 005/005-006/008-008/010 VI. Geomagnetic Activity Probabilities 28 Jun-30 Jun A. Middle Latitudes Active 10/15/25 Minor storm 05/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 15/25/35 Minor storm 05/15/20 Major-severe storm 01/01/05