:Product: 20030709RSGA.txt :Issued: 2003 Jul 09 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 190 Issued at 2200Z on 09 Jul 2003 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity has been low. Region 400 (N05W37) produced two C-class flares, a C1.0 at 08/2135Z, and a C2.4/Sf at 09/1446Z. Region 397 (N14W76) produced several C-class flares, the largest being a C5.8/Sf at 09/1637Z. No significant change was observed in any active region except for Region 402, which grew in magnetic complexity to a beta-gamma configuration. No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be low, with isolated chance of M-class flares from Regions 397, 400, or 402. IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field has been quiet. The greater than 2 MeV electron fluxes at geosynchronous orbit reached high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled, with isolated active to minor storm conditions possible on days two and three due to elevated solar wind speeds as a coronal hole rotates into geoeffective position. III. Event Probabilities 10 Jul-12 Jul Class M 45/45/40 Class X 10/05/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 09 Jul 126 Predicted 10 Jul-12 Jul 135/135/125 90 Day Mean 09 Jul 124 V. Geomagnetic A Indices Observed Afr/Ap 08 Jul 003/005 Estimated Afr/Ap 09 Jul 005/007 Predicted Afr/Ap 10 Jul-12 Jul 010/010-020/025-015/020 VI. Geomagnetic Activity Probabilities 10 Jul-12 Jul A. Middle Latitudes Active 25/40/35 Minor storm 05/10/10 Major-severe storm 01/05/05 B. High Latitudes Active 30/50/50 Minor storm 05/25/25 Major-severe storm 05/10/10