:Product: 20031010RSGA.txt :Issued: 2003 Oct 10 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 283 Issued at 2200Z on 10 Oct 2003 IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity was at low levels. Region 471 (S08W57) produced a C2/Sf flare at 09/2356Z. Region 471 continues to decay and is now down to 90 millionths in area coverage. No significant changes or activity were noted in the remaining active regions. New Region 479 (N24E63) was numbered today. IB. Solar Activity Forecast: Solar activity is expected to be at very low to low levels. IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field was at quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels. The onset of a coronal hole high speed stream is expected on day three with minor storm conditions possible. III. Event Probabilities 11 Oct-13 Oct Class M 05/05/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 10 Oct 112 Predicted 11 Oct-13 Oct 105/100/100 90 Day Mean 10 Oct 119 V. Geomagnetic A Indices Observed Afr/Ap 09 Oct 004/008 Estimated Afr/Ap 10 Oct 005/007 Predicted Afr/Ap 11 Oct-13 Oct 006/010-006/010-020/030 VI. Geomagnetic Activity Probabilities 11 Oct-13 Oct A. Middle Latitudes Active 15/15/40 Minor storm 05/05/25 Major-severe storm 01/01/10 B. High Latitudes Active 20/20/55 Minor storm 05/05/30 Major-severe storm 01/01/15