:Product: 20040707RSGA.txt :Issued: 2004 Jul 07 2200 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 189 Issued at 2200Z on 07 Jul 2004 IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been very low. Low level B-class flares were observed during the last 24 hours. The largest event was a B4/Sf at 07/1719 UTC from Region 641 (N15E12), which is now a spotless region. The event was reported in H-alpha imagery as a parallel ribbon flare with a small disappearing filament along the regions inversion line. Several CME's were observed from the SOHO/LASCO imagery during the period, none of which seem to be Earth directed. A full halo CME was first observed in C2 at 06/2006 UTC. All indications are that this was a backside event. This is the second backside full halo event reported in the past 48 hours. A new region was numbered today as Region 642 (S08E63). IB. Solar Activity Forecast: Solar activity is expected to be very low. IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. III. Event Probabilities 08 Jul-10 Jul Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 07 Jul 079 Predicted 08 Jul-10 Jul 080/085/090 90 Day Mean 07 Jul 097 V. Geomagnetic A Indices Observed Afr/Ap 06 Jul 005/007 Estimated Afr/Ap 07 Jul 005/007 Predicted Afr/Ap 08 Jul-10 Jul 005/010-005/008-008/008 VI. Geomagnetic Activity Probabilities 08 Jul-10 Jul A. Middle Latitudes Active 10/10/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 25/20/20 Minor storm 10/10/10 Major-severe storm 05/05/05