:Product: 1110RSGA.txt :Issued: 2008 Nov 10 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 315 Issued at 2200Z on 10 Nov 2008 IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity was very low. Newly numbered Region 1008 (N33E01) emerged on the disk today and managed to produce todays only event, a B3 x-ray flare at 2031Z. The group is a small (40 millionths), fairly simple D-type sunspot group although there is some weak polarity mixing in the trailer part of the region. IB. Solar Activity Forecast: Solar activity is expected to be predominantly very low for the next three days (11-13 November). There is a slight chance for an isolated C-class flare from Region 1008 if it continues to emerge. IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field was generally quiet during the past 24 hours. ACE solar wind data showed a steady decline of solar wind velocity during the past 24 hours with day-end values around 400 km/s. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the past 24 hours. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet for the next three days (11-13 November). III. Event Probabilities 11 Nov-13 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 10 Nov 069 Predicted 11 Nov-13 Nov 070/070/070 90 Day Mean 10 Nov 068 V. Geomagnetic A Indices Observed Afr/Ap 09 Nov 010/012 Estimated Afr/Ap 10 Nov 005/005 Predicted Afr/Ap 11 Nov-13 Nov 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 11 Nov-13 Nov A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01