:Product: 0628RSGA.txt :Issued: 2007 Jun 28 2153 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 179 Issued at 2200Z on 28 Jun 2007 IA. Analysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity was very low. Region 961 (S11E36) remains relatively unchanged since yesterday. New Region 962 (S12E67) rotated onto the visible disk and is currently classified as a Bxo beta sunspot group. 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 from Region 962. IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z: 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 29-30 June due to a recurrent coronal hole high speed stream. III. Event Probabilities 29 Jun-01 Jul Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 28 Jun 075 Predicted 29 Jun-01 Jul 080/080/080 90 Day Mean 28 Jun 074 V. Geomagnetic A Indices Observed Afr/Ap 27 Jun 005/005 Estimated Afr/Ap 28 Jun 004/005 Predicted Afr/Ap 29 Jun-01 Jul 008/008-008/010-006/008 VI. Geomagnetic Activity Probabilities 29 Jun-01 Jul A. Middle Latitudes Active 15/25/15 Minor storm 05/10/05 Major-severe storm 01/01/01 B. High Latitudes Active 25/35/25 Minor storm 15/20/15 Major-severe storm 01/05/01