:Product: 1121RSGA.txt :Issued: 2009 Nov 21 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 325 Issued at 2200Z on 21 Nov 2009 IA. Analysis of Solar Active Regions and Activity from 20/2100Z to 21/2100Z: Solar activity was very low. Region 1033 (N18E07) remains a Bxo-beta region. No significant flares were observed during the past 24 hours. The SOHO/C2 images observed a slow moving (around 200 km/s) Earth directed CME at 21/0755Z. EIT images also showed a wave pattern, associated with the CME, located in the vicinity of a filament channel around S40E30. IB. Solar Activity Forecast: Solar activity is expected to remain very low with a slight chance for a C-class flare. IIA. Geophysical Activity Summary 20/2100Z to 21/2100Z: The geomagnetic field was quiet to unsettled. Observations from the ACE spacecraft indicate the continued influence of a recurrent coronal hole high speed stream. Solar wind speed rose through the period from 430 -575 km/s with Bz fluctuations from -8 to +9 nT. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be predominantly quiet for the next three days (22-24 November). III. Event Probabilities 22 Nov-24 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 21 Nov 076 Predicted 22 Nov-24 Nov 078/078/078 90 Day Mean 21 Nov 071 V. Geomagnetic A Indices Observed Afr/Ap 20 Nov 002/001 Estimated Afr/Ap 21 Nov 007/008 Predicted Afr/Ap 22 Nov-24 Nov 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 22 Nov-24 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