:Product: 0208RSGA.txt :Issued: 2007 Feb 08 2202 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Environment Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 039 Issued at 2200Z on 08 Feb 2007 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity was at very low levels. No significant activity occurred today. Region 941 (S07W61) underwent little change during the period and is currently the only spotted region on the visible disk. IB. Solar Activity Forecast: Solar activity is expected to remain at very low levels. IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field was at quiet to unsettled levels. 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 on 09 and 10 February. A recurrent high speed coronal hole stream is expected to become geoeffective late on 11 February. Active to minor storm conditions are expected with the onset of the coronal hole. III. Event Probabilities 09 Feb-11 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Feb 078 Predicted 09 Feb-11 Feb 080/083/083 90 Day Mean 08 Feb 084 V. Geomagnetic A Indices Observed Afr/Ap 07 Feb 008/010 Estimated Afr/Ap 08 Feb 005/005 Predicted Afr/Ap 09 Feb-11 Feb 005/005-005/005-012/020 VI. Geomagnetic Activity Probabilities 09 Feb-11 Feb A. Middle Latitudes Active 15/15/25 Minor storm 01/01/10 Major-severe storm 01/01/05 B. High Latitudes Active 15/15/40 Minor storm 05/05/20 Major-severe storm 01/01/15