:Product: 20021119RSGA.txt :Issued: 2002 Nov 19 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 323 Issued at 2200Z on 19 Nov 2002 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was at low levels. The largest event was an optically uncorrelated C4 flare at 19/0737 UTC. Region 191 (S18W68) continues a gradual decay in penumbral coverage and spot count. Region 198 (S18E28) has shown a slight decrease in penumbral coverage but an increase in spot count. The leader spot of Region 198 continues to show magnetic complexity that could develop into a delta magnetic configuration. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Region 191 and Region 198 have M-class potential. IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field has been at quiet to unsettled levels. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. Coronal hole effects are expected on day three of the forecast period. III. Event Probabilities 20 Nov-22 Nov Class M 55/55/55 Class X 10/10/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 19 Nov 168 Predicted 20 Nov-22 Nov 165/160/155 90 Day Mean 19 Nov 175 V. Geomagnetic A Indices Observed Afr/Ap 18 Nov 011/012 Estimated Afr/Ap 19 Nov 010/012 Predicted Afr/Ap 20 Nov-22 Nov 008/012-008/012-012/015 VI. Geomagnetic Activity Probabilities 20 Nov-22 Nov A. Middle Latitudes Active 15/15/25 Minor storm 05/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/30 Minor storm 05/05/10 Major-severe storm 01/01/01