:Product: 20030629RSGA.txt :Issued: 2003 Jun 29 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 180 Issued at 2200Z on 29 Jun 2003 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity remained low. Region 396 (S04W38) produced a few C-class subflares late in the period. Region 397 (N12E53) also produced C-class activity. The region is now visible as an elongated white light group, with a large plage field. Magnetically the region is very confused, with a mixture of leading and trailing polarities interspersed. The limbs were quiet. IB. Solar Activity Forecast: Solar activity is expected to be low. IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field was at unsettled to minor storm levels. Solar wind speeds remain elevated, now near 700 km/s. This high speed stream is from a large coronal hole in the western solar hemisphere. The GOES greater than 2 MeV electron flux is again high. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be generally active. Periods of minor storming may occur as the high speed stream gradually abates. Unsettled conditions are anticipated by the end of the interval. III. Event Probabilities 30 Jun-02 Jul Class M 25/25/25 Class X 05/05/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 29 Jun 127 Predicted 30 Jun-02 Jul 130/130/130 90 Day Mean 29 Jun 1234 V. Geomagnetic A Indices Observed Afr/Ap 28 Jun 030/032 Estimated Afr/Ap 29 Jun 025/025 Predicted Afr/Ap 30 Jun-02 Jul 020/025-015/020-010/015 VI. Geomagnetic Activity Probabilities 30 Jun-02 Jul A. Middle Latitudes Active 30/40/60 Minor storm 40/30/15 Major-severe storm 20/10/05 B. High Latitudes Active 20/30/40 Minor storm 50/40/30 Major-severe storm 25/20/15