:Product: 0206RSGA.txt :Issued: 2008 Feb 06 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 037 Issued at 2200Z on 06 Feb 2008 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was very low. No flares were detected. The visible disk was spotless. IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field was quiet at all latitudes. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during the period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on day 1 (07 Feb). Activity is expected to increase to unsettled levels during days 2 - 3 (08 - 09 Feb) as a recurrent coronal hole high-speed stream becomes geoeffective. Isolated active periods are also possible on day 3 (09 Feb). III. Event Probabilities 07 Feb-09 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Feb 072 Predicted 07 Feb-09 Feb 070/070/070 90 Day Mean 06 Feb 075 V. Geomagnetic A Indices Observed Afr/Ap 05 Feb 002/003 Estimated Afr/Ap 06 Feb 002/002 Predicted Afr/Ap 07 Feb-09 Feb 005/005-008/008-010/012 VI. Geomagnetic Activity Probabilities 07 Feb-09 Feb A. Middle Latitudes Active 05/20/25 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 10/25/30 Minor storm 01/01/01 Major-severe storm 01/01/01