:Product: 20030608RSGA.txt :Issued: 2003 Jun 08 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 159 Issued at 2200Z on 08 Jun 2003 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been moderate. Region 380 (S15E56) produced an M4/2n event at 08/1611 UTC. This region has produced several C-class flares and shown significant growth since yesterday. Region 375 (N13W18) continues to produce mid to high level C-class flares and maintains its beta-gamma-delta magnetic configuration. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Regions 375 and 380 have potential for producing an isolated X-class event. IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: The geomagnetic field has been at unsettled to minor storm conditions. This activity seems to be the result of the expected coronal hole high speed stream. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to remain at unsettled to active conditions for the three days of the forecast period. The continued elevated solar wind speeds are expected to produce isolated minor storm conditions during local nighttime. III. Event Probabilities 09 Jun-11 Jun Class M 60/60/60 Class X 10/10/10 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Jun 153 Predicted 09 Jun-11 Jun 160/155/155 90 Day Mean 08 Jun 122 V. Geomagnetic A Indices Observed Afr/Ap 07 Jun 026/024 Estimated Afr/Ap 08 Jun 020/025 Predicted Afr/Ap 09 Jun-11 Jun 020/025-020/025-015/025 VI. Geomagnetic Activity Probabilities 09 Jun-11 Jun A. Middle Latitudes Active 40/40/30 Minor storm 20/20/15 Major-severe storm 05/05/05 B. High Latitudes Active 45/45/45 Minor storm 30/30/30 Major-severe storm 10/10/10