:Product: 1004RSGA.txt :Issued: 2009 Oct 04 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 277 Issued at 2200Z on 04 Oct 2009 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity was very low. The solar disk remains spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field was quiet. A sudden impulse of 18 nT occurred at the Boulder magnetometer at 04/0422Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quit for the next three days (05-07 October). III. Event Probabilities 05 Oct-07 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 04 Oct 071 Predicted 05 Oct-07 Oct 070/069/069 90 Day Mean 04 Oct 069 V. Geomagnetic A Indices Observed Afr/Ap 03 Oct 001/001 Estimated Afr/Ap 04 Oct 003/005 Predicted Afr/Ap 05 Oct-07 Oct 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 05 Oct-07 Oct 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