:Product: 0217RSGA.txt :Issued: 2006 Feb 17 2203 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 048 Issued at 2200Z on 17 Feb 2006 IA. Analysis of Solar Active Regions and Activity from 16/2100Z to 17/2100Z: Solar activity continues at very low levels. Region 854 (S08W09) and newly numbered Region 855 (N05E15) are both in decay. A large CME was observed off the northeast limb at approximately 17/0530Z. The CME is not expected to be geoeffective. IB. Solar Activity Forecast: Solar activity is expected to continue at very low levels. IIA. Geophysical Activity Summary 16/2100Z to 17/2100Z: The geomagnetic field was quiet to unsettled. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet on 18 February. A coronal hole high speed solar wind stream is expected to rotate into a geoeffective position on 19 February. Unsettled conditions with isolated active periods are possible on 19 and 20 February. III. Event Probabilities 18 Feb-20 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 17 Feb 079 Predicted 18 Feb-20 Feb 080/085/085 90 Day Mean 17 Feb 085 V. Geomagnetic A Indices Observed Afr/Ap 16 Feb 007/008 Estimated Afr/Ap 17 Feb 005/006 Predicted Afr/Ap 18 Feb-20 Feb 005/005-010/012-008/010 VI. Geomagnetic Activity Probabilities 18 Feb-20 Feb A. Middle Latitudes Active 15/25/25 Minor storm 01/10/10 Major-severe storm 01/01/01 B. High Latitudes Active 20/30/30 Minor storm 05/15/15 Major-severe storm 01/05/05