:Product: 20030607RSGA.txt :Issued: 2003 Jun 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 158 Issued at 2200Z on 07 Jun 2003 IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been moderate. Region 375 (N12W04) produced an M1/1f flare at 06/2338 UTC with an associated Type II radio sweep. This region has grown in white light area and sunspot count and continues to exhibit a beta-gamma-delta magnetic configuration. A new region was numbered today as Region 380 (S16E68). IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Region 375 and 380 both have the potential for continued C-class and M-class flaring. There is a chance for an isolated X-class event from Region 375. IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been unsettled to active. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be primarily unsettled to active with periods of minor storm conditions for the next three days. These conditions are expected due to a recurrent coronal hole. III. Event Probabilities 08 Jun-10 Jun Class M 50/50/50 Class X 05/05/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 07 Jun 133 Predicted 08 Jun-10 Jun 130/125/120 90 Day Mean 07 Jun 121 V. Geomagnetic A Indices Observed Afr/Ap 06 Jun 010/013 Estimated Afr/Ap 07 Jun 020/023 Predicted Afr/Ap 08 Jun-10 Jun 020/025-020/025-020/025 VI. Geomagnetic Activity Probabilities 08 Jun-10 Jun A. Middle Latitudes Active 40/40/40 Minor storm 20/20/20 Major-severe storm 05/05/05 B. High Latitudes Active 45/45/45 Minor storm 30/30/30 Major-severe storm 10/10/10