:Product: 20030209RSGA.txt :Issued: 2003 Feb 09 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 040 Issued at 2200Z on 09 Feb 2003 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity dropped to very low levels this period. Minor B-class subflares from Regions 276 (S12W26) and 280 (S07W13) were the only notable activity observed. No significant changes were observed in the remaining active regions. New Region 286 (S11W17) was numbered today. IB. Solar Activity Forecast: Solar activity is expected to be low to very low. Occasional low C-class flares are possible. IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field was mostly quiet to unsettled with isolated active periods. Solar wind conditions were at near nominal levels, but periods of weak southward IMF Bz yielded the occasional active periods. The greater than 2 MeV electron fluxes at geosynchronous orbit remain considerably enhanced, reaching high levels again this period. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to continue at mostly quiet to unsettled levels with isolated active periods likely. III. Event Probabilities 10 Feb-12 Feb Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 09 Feb 141 Predicted 10 Feb-12 Feb 140/140/135 90 Day Mean 09 Feb 141 V. Geomagnetic A Indices Observed Afr/Ap 08 Feb 009/013 Estimated Afr/Ap 09 Feb 010/015 Predicted Afr/Ap 10 Feb-12 Feb 008/012-008/012-005/008 VI. Geomagnetic Activity Probabilities 10 Feb-12 Feb A. Middle Latitudes Active 20/20/15 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 30/30/25 Minor storm 10/10/05 Major-severe storm 01/01/01