:Product: 20020305RSGA.txt :Issued: 2002 Mar 05 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 064 Issued at 2200Z on 05 Mar 2002 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: Solar activity was at low levels. A B9 flare (optically uncorrelated) occurred at 05/0534 UTC, this was the only recorded flare of the period. Several Type III radio sweeps comprised the rest of the activity seen during the period. Region 9845 (N17W60) saw a decrease in spot count but remained unchanged in areal coverage. Region 9851 (S06E02) has shown some growth in spot coverage and magnetic complexity late in the period. New Regions 9860 (S06E61) and 9861 (N07E66) were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be at low levels. Region 9845 continues to be complex enough to possibly produce an isolated M-class flare. IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: The geomagnetic field activity was at quiet to active levels. High speed stream effects of a large, recurrent coronal hole remains geoeffective. IIB. Geophysical Activity Forecast: The geomagnetic field activity is expected to be at quiet to active conditions through day one of the forecast period. Due to coronal hole effects, minor storm conditions may be possible at higher latitudes through day one as well. Days two and three should see a return to quiet to unsettled conditions. III. Event Probabilities 06 Mar-08 Mar Class M 25/25/25 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Mar 172 Predicted 06 Mar-08 Mar 170/170/175 90 Day Mean 05 Mar 220 V. Geomagnetic A Indices Observed Afr/Ap 04 Mar 009/009 Estimated Afr/Ap 05 Mar 017/017 Predicted Afr/Ap 06 Mar-08 Mar 020/030-012/015-010/012 VI. Geomagnetic Activity Probabilities 06 Mar-08 Mar A. Middle Latitudes Active 40/30/20 Minor storm 15/10/10 Major-severe storm 01/01/01 B. High Latitudes Active 45/35/25 Minor storm 20/15/10 Major-severe storm 10/01/01