:Product: 1123RSGA.txt :Issued: 2007 Nov 23 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 327 Issued at 2200Z on 23 Nov 2007 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 be very low. IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z: The geomagnetic field was quiet to active with minor storm conditions at high latitudes. Solar wind observations from the ACE spacecraft indicate a continued influence of the coronal hole high speed stream. Solar wind speeds began the past 24 hour period at 620 km/s and are currently averaging around 550 km/s. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled for 24-26 November. 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 070 Predicted 24 Nov-26 Nov 070/070/070 90 Day Mean 23 Nov 068 V. Geomagnetic A Indices Observed Afr/Ap 22 Nov 006/013 Estimated Afr/Ap 23 Nov 010/010 Predicted Afr/Ap 24 Nov-26 Nov 008/010-008/015-008/010 VI. Geomagnetic Activity Probabilities 24 Nov-26 Nov A. Middle Latitudes Active 15/15/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor storm 10/10/10 Major-severe storm 05/05/05