:Product: 20040104RSGA.txt :Issued: 2004 Jan 04 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 004 Issued at 2200Z on 04 Jan 2004 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: Solar activity has been low. Region 536 (S10E38) has produced several low C-class flares. The region has indicated some weak polarity intermixing in the past twenty-four hours but remains a beta magnetic configuration. IB. Solar Activity Forecast: Solar activity is expected to be low. An isolated M-class event is possible from Region 536. IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field has been at unsettled to minor storm conditions. The greater than 2 MeV electron flux at geosynchronous orbit was at high levels today. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be unsettled to active with periods of minor storm conditions possible for 05-07 January. This is due to the solar wind high speed stream continuing through the period. III. Event Probabilities 05 Jan-07 Jan Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 04 Jan 119 Predicted 05 Jan-07 Jan 125/125/120 90 Day Mean 04 Jan 136 V. Geomagnetic A Indices Observed Afr/Ap 03 Jan 011/026 Estimated Afr/Ap 04 Jan 025/025 Predicted Afr/Ap 05 Jan-07 Jan 020/025-020/025-020/025 VI. Geomagnetic Activity Probabilities 05 Jan-07 Jan A. Middle Latitudes Active 35/35/35 Minor storm 15/15/15 Major-severe storm 10/10/10 B. High Latitudes Active 40/40/40 Minor storm 20/20/20 Major-severe storm 10/10/10