:Product: Report of Solar-Geophysical Activity :Issued: 2004 Oct 29 2210 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 303 Issued at 2200Z on 29 Oct 2004 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity was low. As it has the past few days, Region 693 (S14E46) produced numerous impulsive C-class flares. The region continues to exhibit bright plage and maintains a degree of magnetic complexity. Elsewhere, little else of significance occurred. IB. Solar Activity Forecast: Solar activity is expected to be low. Region 693 should produce additional C-class activity. IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: The geomagnetic field was mostly quiet. An enhancement in the southward component of the IMF brought brief intervals of unsettled to active conditions. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to persist at quiet to unsettled conditions for the next 72 hours. III. Event Probabilities 30 Oct-01 Nov Class M 30/30/30 Class X 05/05/05 Proton 05/05/05 PCAF Green IV. Penticton 10.7 cm Flux Observed 29 Oct 129 Predicted 30 Oct-01 Nov 130/125/125 90 Day Mean 29 Oct 106 V. Geomagnetic A Indices Observed Afr/Ap 28 Oct 002/003 Estimated Afr/Ap 29 Oct 005/010 Predicted Afr/Ap 30 Oct-01 Nov 010/010-005/005-005/005 VI. Geomagnetic Activity Probabilities 30 Oct-01 Nov A. Middle Latitudes Active 25/20/20 Minor storm 15/15/15 Major-severe storm 05/05/05 B. High Latitudes Active 30/25/25 Minor storm 15/15/15 Major-severe storm 05/05/05