:Product: 20040613RSGA.txt :Issued: 2004 Jun 13 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 165 Issued at 2200Z on 13 Jun 2004 IA. Analysis of Solar Active Regions and Activity from 12/2100Z to 13/2100Z: Solar activity was moderate. New Region 634 (N12E73) produced an M1 flare at 13/1156 UTC as well as smaller B and C-class flares during the past 24 hours. The region is rotating into view as a small D-type sunspot group. Another new active region is rotating onto the disk near southeast 08. Sunspots are not yet visible but GOES SXI has observed B-class flares from this area. Other disk regions were quiet. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Another small M-class flare is possible in Region 634. IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled becoming unsettled to active under the influence of a high-speed coronal hole stream. III. Event Probabilities 14 Jun-16 Jun Class M 30/30/30 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 13 Jun 095 Predicted 14 Jun-16 Jun 100/105/110 90 Day Mean 13 Jun 102 V. Geomagnetic A Indices Observed Afr/Ap 12 Jun 007/007 Estimated Afr/Ap 13 Jun 008/006 Predicted Afr/Ap 14 Jun-16 Jun 010/010-015/015-015/015 VI. Geomagnetic Activity Probabilities 14 Jun-16 Jun A. Middle Latitudes Active 15/25/25 Minor storm 05/10/10 Major-severe storm 01/01/01 B. High Latitudes Active 35/35/35 Minor storm 15/15/15 Major-severe storm 05/05/05