:Product: 0126RSGA.txt :Issued: 2007 Jan 26 2204 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 026 Issued at 2200Z on 26 Jan 2007 IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity was low. New Region 940 (S06E77) rotated onto the visible disk today. This region produced a C3 flare at 25/2143Z, as well as a long duration B3 flare at 26/0951Z. Region 940 is currently classified as an Hax Alpha sunspot group, since only one spot is currently visible on the solar disk. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Region 940 is capable of producing M-class flares. IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field was quiet. The greater than 2 MeV electron flux at geosynchronous orbit remained at high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to range from quiet to active for the next three days. Isolated periods of minor storming are possible at high latitudes on 29 January, as a recurrent coronal hole rotates into a geoeffective position. III. Event Probabilities 27 Jan-29 Jan Class M 30/35/35 Class X 05/10/10 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 26 Jan 080 Predicted 27 Jan-29 Jan 085/090/090 90 Day Mean 26 Jan 084 V. Geomagnetic A Indices Observed Afr/Ap 25 Jan 001/001 Estimated Afr/Ap 26 Jan 005/005 Predicted Afr/Ap 27 Jan-29 Jan 005/010-008/010-012/020 VI. Geomagnetic Activity Probabilities 27 Jan-29 Jan A. Middle Latitudes Active 15/20/25 Minor storm 05/10/15 Major-severe storm 01/01/05 B. High Latitudes Active 15/25/30 Minor storm 10/10/20 Major-severe storm 01/01/10