:Product: 0406RSGA.txt :Issued: 2007 Apr 06 2203 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 096 Issued at 2200Z on 06 Apr 2007 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was at very low levels. The visible disk remains spotless. No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to remain at very low levels. IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field was at quiet levels. The greater than 2 MeV electron flux at geosynchronous orbit reached high levels again today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on 07 and 08 April. A recurrent coronal hole is expected to become geoeffective on 09 April with elevated conditions of minor storm to isolated severe storm levels possible. III. Event Probabilities 07 Apr-09 Apr Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Apr 071 Predicted 07 Apr-09 Apr 070/070/070 90 Day Mean 06 Apr 077 V. Geomagnetic A Indices Observed Afr/Ap 05 Apr 003/004 Estimated Afr/Ap 06 Apr 003/004 Predicted Afr/Ap 07 Apr-09 Apr 002/005-008/010-015/020 VI. Geomagnetic Activity Probabilities 07 Apr-09 Apr A. Middle Latitudes Active 10/20/25 Minor storm 01/05/15 Major-severe storm 01/01/10 B. High Latitudes Active 15/20/35 Minor storm 05/10/20 Major-severe storm 01/05/15