:Product: 20020706RSGA.txt :Issued: 2002 Jul 06 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 187 Issued at 2200Z on 06 Jul 2002 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity was moderate. The largest flare of the past day was an M1 at 06/0342 UTC. Although no optical flare reports were received, SOHO EIT data suggests that the source was Region 17 from just behind the southwest solar limb. Region 19 (S17W21) produced a C6/1N flare at 06/0938 UTC. This sunspot group appears to have diminished slightly in complexity. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Region 19 remains capable of C-class activity. An isolated M-class flare in this region is also possible. IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field was unsettled to active. ACE satellite data confirms that a high-speed coronal hole stream is responsible for the activity. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be unsettled to active as the coronal hole disturbance continues. III. Event Probabilities 07 Jul-09 Jul Class M 40/30/30 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Jul 134 Predicted 07 Jul-09 Jul 132/132/130 90 Day Mean 06 Jul 169 V. Geomagnetic A Indices Observed Afr/Ap 05 Jul 009/013 Estimated Afr/Ap 06 Jul 016/020 Predicted Afr/Ap 07 Jul-09 Jul 015/015-015/010-010/010 VI. Geomagnetic Activity Probabilities 07 Jul-09 Jul A. Middle Latitudes Active 50/50/30 Minor storm 10/10/10 Major-severe storm 01/01/01 B. High Latitudes Active 60/60/40 Minor storm 15/15/15 Major-severe storm 01/01/01