:Product: 20010112RSGA.txt :Issued: 2001 Jan 12 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 012 Issued at 2200Z on 12 Jan 2001 IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity was low. Only three isolated C-class events occurred during the period. The largest being an optically uncorrelated C2 event at 12/1212 UTC. IB. Solar Activity Forecast: Solar activity is expected to be low with isolated M-class events possible. IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: The geomagnetic field was mostly quiet to unsettled with a single mid-latitude active period occurring at 12/0300-0600 UTC. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to active. III. Event Probabilities 13 Jan-15 Jan Class M 30/30/30 Class X 05/05/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 12 Jan 178 Predicted 13 Jan-15 Jan 175/180/185 90 Day Mean 12 Jan 174 V. Geomagnetic A Indices Observed Afr/Ap 11 Jan 004/005 Estimated Afr/Ap 12 Jan 010/010 Predicted Afr/Ap 13 Jan-15 Jan 012/012-010/012-005/005 VI. Geomagnetic Activity Probabilities 13 Jan-15 Jan A. Middle Latitudes Active 25/25/20 Minor storm 10/10/10 Major-severe storm 01/01/01 B. High Latitudes Active 30/30/25 Minor storm 10/10/10 Major-severe storm 01/01/01