:Product: 0508RSGA.txt :Issued: 2007 May 08 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 128 Issued at 2200Z on 08 May 2007 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been very low. Region 953 has rotated off the visible disk. IB. Solar Activity Forecast: Solar activity is expected to be very low to low. IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has ranged from quiet to active. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled on 09 May. Isolated active periods remain possible due to a geoeffective, recurrent coronal hole high speed stream. The geomagnetic field is expected to be predominately quiet on 10 - 11 May. III. Event Probabilities 09 May-11 May Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 08 May 073 Predicted 09 May-11 May 070/070/070 90 Day Mean 08 May 074 V. Geomagnetic A Indices Observed Afr/Ap 07 May 011/018 Estimated Afr/Ap 08 May 012/015 Predicted Afr/Ap 09 May-11 May 008/008-004/005-004/005 VI. Geomagnetic Activity Probabilities 09 May-11 May A. Middle Latitudes Active 25/15/15 Minor storm 15/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 35/25/25 Minor storm 25/15/15 Major-severe storm 05/01/01