:Product: 1127RSGA.txt :Issued: 2007 Nov 27 2203 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 331 Issued at 2200Z on 27 Nov 2007 IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: Solar activity was very low. No flares occurred during the past 24 hours. Region 975 (N03W50) has decayed to spotless plage. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field was mostly quiet. Solar wind speed steadily declined throughout the period with day-end values around 440 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 (28-30 November). III. Event Probabilities 28 Nov-30 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 27 Nov 071 Predicted 28 Nov-30 Nov 070/070/070 90 Day Mean 27 Nov 068 V. Geomagnetic A Indices Observed Afr/Ap 26 Nov 006/008 Estimated Afr/Ap 27 Nov 005/005 Predicted Afr/Ap 28 Nov-30 Nov 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 28 Nov-30 Nov A. Middle Latitudes Active 05/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 10/10/10 Minor storm 05/05/05 Major-severe storm 01/01/01