:Product: 20010219RSGA.txt :Issued: 2001 Feb 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 050 Issued at 2200Z on 19 Feb 2001 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was low. A C5 X-ray event with no optical correlation occurred at 19/2100Z. Minor growth was observed in Regions 9354 (S09W06) and 9358 (S08E33). No new regions were numbered today. IB. Solar Activity Forecast: Solar activity is expected to be low. IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. III. Event Probabilities 20 Feb-22 Feb Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 19 Feb 137 Predicted 20 Feb-22 Feb 140/145/145 90 Day Mean 19 Feb 169 V. Geomagnetic A Indices Observed Afr/Ap 18 Feb 002/004 Estimated Afr/Ap 19 Feb 005/005 Predicted Afr/Ap 20 Feb-22 Feb 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 20 Feb-22 Feb A. Middle Latitudes Active 20/20/20 Minor storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/25 Minor storm 10/10/10 Major-severe storm 01/01/01