:Product: 0102RSGA.txt :Issued: 2007 Jan 02 2203 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 002 Issued at 2200Z on 02 Jan 2007 IA. Analysis of Solar Active Regions and Activity from 01/2100Z to 02/2100Z: Solar activity was very low. Region 933 (S03E40) has produced only B-class activity. IB. Solar Activity Forecast: Solar activity is expected to be very low. There is a slight chance for an isolated C-class flare from Region 933. IIA. Geophysical Activity Summary 01/2100Z to 02/2100Z: The geomagnetic field has been unsettled to active, with a single minor storm period observed at high latitudes. Solar wind speed reached a peak of approximately 650 km/s today, and remains elevated at 550 km/s due to the coronal hole high speed stream. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be unsettled to active with a chance for isolated minor storm periods at high latitudes on 03 - 04 January due to the coronal hole high speed stream. Expect mostly unsettled conditions on 05 January. III. Event Probabilities 03 Jan-05 Jan Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 02 Jan 090 Predicted 03 Jan-05 Jan 090/090/090 90 Day Mean 02 Jan 082 V. Geomagnetic A Indices Observed Afr/Ap 01 Jan 007/007 Estimated Afr/Ap 02 Jan 018/025 Predicted Afr/Ap 03 Jan-05 Jan 015/025-010/015-008/010 VI. Geomagnetic Activity Probabilities 03 Jan-05 Jan A. Middle Latitudes Active 30/20/15 Minor storm 15/10/10 Major-severe storm 05/01/01 B. High Latitudes Active 40/25/20 Minor storm 20/15/15 Major-severe storm 10/05/01