:Product: 1123RSGA.txt :Issued: 2008 Nov 23 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 328 Issued at 2200Z on 23 Nov 2008 IA. Analysis of Solar Active Regions and Activity from 22/2100Z to 23/2100Z: Solar activity was very low. IB. Solar Activity Forecast: Solar activity is expected to remain very low. IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on day one (24 November), On days two and three (25-26 November), the geomagnetic field is expected to become unsettled to active, with a slight chance of isolated minor storm conditions at high latitudes, under the influence of a recurrent coronal hole high speed stream. III. Event Probabilities 24 Nov-26 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 23 Nov ??? Predicted 24 Nov-26 Nov 070/070/070 90 Day Mean 23 Nov 068 V. Geomagnetic A Indices Observed Afr/Ap 22 Nov 000/001 Estimated Afr/Ap 23 Nov 002/005 Predicted Afr/Ap 24 Nov-26 Nov 005/005-008/008-012/012 VI. Geomagnetic Activity Probabilities 24 Nov-26 Nov A. Middle Latitudes Active 05/15/20 Minor storm 01/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 05/20/25 Minor storm 01/10/15 Major-severe storm 01/01/01