:Product: 20010313RSGA.txt :Issued: 2001 Mar 13 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 072 Issued at 2200Z on 13 Mar 2001 IA. Analysis of Solar Active Regions and Activity from 12/2100Z to 13/2100Z: Solar activity was low with two C1 X-ray flares, both optically uncorrelated. New Region 9381 (S19E37) was numbered today. IB. Solar Activity Forecast: Solar activity is expected to be predominantly low with a chance for an isolated M-class flare. IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled. III. Event Probabilities 14 Mar-16 Mar Class M 40/45/50 Class X 05/05/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 13 Mar 147 Predicted 14 Mar-16 Mar 145/145/145 90 Day Mean 13 Mar 162 V. Geomagnetic A Indices Observed Afr/Ap 12 Mar 008/010 Estimated Afr/Ap 13 Mar 008/008 Predicted Afr/Ap 14 Mar-16 Mar 005/005-005/005-005/005 VI. Geomagnetic Activity Probabilities 14 Mar-16 Mar 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 05/05/05 Major-severe storm 01/01/01