:Product: 20030609RSGA.txt :Issued: 2003 Jun 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 160 Issued at 2200Z on 09 Jun 2003 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity has been moderate. Region 375 (N12W32) produced an M4/1n event at 09/1128 UTC with an associated Type II radio sweep. The SOHO/LASCO imagery also observed a CME which accompanied this event. The CME appears to be directed toward the northwest and not earthbound. Region 375 continues to become more magnetically complex and maintains its delta magnetic configuration. This region has been responsible for the majority of events of this period. However, Region 380 (S14E42) produced several C-class events and has increased in both white light area and sunspot count since yesterday. New Region 381 (S18E19) was numbered today. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Region 375 and 380 both remain capable of producing a major flare. IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field has been unsettled to active. This activity is a result of continued coronal hole effects and the elevated solar wind speeds. 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 isolated periods of minor storm conditions for 10 and 11 June. Quiet to unsettled conditions are expected for 12 June as solar wind speeds should begin to decrease. III. Event Probabilities 10 Jun-12 Jun Class M 70/70/70 Class X 20/20/20 Proton 05/05/05 PCAF yellow IV. Penticton 10.7 cm Flux Observed 09 Jun 158 Predicted 10 Jun-12 Jun 155/155/150 90 Day Mean 09 Jun 122 V. Geomagnetic A Indices Observed Afr/Ap 08 Jun 021/027 Estimated Afr/Ap 09 Jun 020/020 Predicted Afr/Ap 10 Jun-12 Jun 020/025-015/020-010/012 VI. Geomagnetic Activity Probabilities 10 Jun-12 Jun A. Middle Latitudes Active 40/30/20 Minor storm 20/15/10 Major-severe storm 05/05/01 B. High Latitudes Active 45/35/30 Minor storm 30/30/15 Major-severe storm 10/05/05