:Product: Report of Solar-Geophysical Activity :Issued: 2008 Oct 03 2201 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 03 Oct 2008 IA. Analysis of Solar Active Regions and Activity from 02/2100Z to 03/2100Z: Solar activity was very low. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 02/2100Z to 03/2100Z: The geomagnetic field was at quiet to active conditions. Solar wind observations from the ACE spacecraft show a continued influence of the recurrent coronal hole high speed solar wind stream. Solar wind speed has averaged around 660 km/s with Bz fluctuations from +/- 4 nT. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels with possible isolated active periods for 04-05 October. Mostly quiet conditions are expected for 06 October. III. Event Probabilities 04 Oct-06 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 03 Oct 067 Predicted 04 Oct-06 Oct 066/066/066 90 Day Mean 03 Oct 066 V. Geomagnetic A Indices Observed Afr/Ap 02 Oct 011/012 Estimated Afr/Ap 03 Oct 010/012 Predicted Afr/Ap 04 Oct-06 Oct 007/010-007/008-005/005 VI. Geomagnetic Activity Probabilities 04 Oct-06 Oct A. Middle Latitudes Active 10/10/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/10/05 Minor storm 05/01/01 Major-severe storm 01/01/01