:Product: 0228RSGA.txt :Issued: 2011 Feb 28 2200 UTC # Prepared jointly by the U.S. Dept. of Commerce, NOAA, # Space Weather Prediction Center and the U.S. Air Force. # Joint USAF/NOAA Report of Solar and Geophysical Activity SDF Number 059 Issued at 2200Z on 28 Feb 2011 IA. Analysis of Solar Active Regions and Activity from 27/2100Z to 28/2100Z: Solar activity was moderate during the past 24 hours. Region 1164 (N26E33) produced a C2/Sf flare associated with a Type II Sweep and an M1 event at 28/1252Z. IB. Solar Activity Forecast: Solar activity is expected to be low for the next three days (01-03 March). A chance for M-class activity exists from Region 1164. IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z: The geomagnetic field was quiet during the past 24 hours. IIB. Geophysical Activity Forecast: Quiet to unsettled conditions are expected for the next three days (01-03 March) due to the effects of a recurrent coronal hole high speed stream. III. Event Probabilities 01 Mar-03 Mar Class M 35/35/35 Class X 01/01/01 Proton 01/01/01 PCAF Green IV. Penticton 10.7 cm Flux Observed 28 Feb 096 Predicted 01 Mar-03 Mar 095/095/098 90 Day Mean 28 Feb 087 V. Geomagnetic A Indices Observed Afr/Ap 27 Feb 001/002 Estimated Afr/Ap 28 Feb 002/005 Predicted Afr/Ap 01 Mar-03 Mar 008/008-008/010-012/012 VI. Geomagnetic Activity Probabilities 01 Mar-03 Mar A. Middle Latitudes Active 15/15/20 Minor storm 05/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 25/25/30 Minor storm 10/10/15 Major-severe storm 01/01/01