:Product: 0227RSGA.txt :Issued: 2010 Feb 27 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 058 Issued at 2200Z on 27 Feb 2010 IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: Solar activity was very low. No flares were detected during the forecast period. IB. Solar Activity Forecast: Solar activity is expected to be very low to low due to the return of old Region 1045 (N19, L251). IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: Geomagnetic field activity was at quiet levels. IIB. Geophysical Activity Forecast: Geomagnetic field activity is expected to increase to quiet to unsettled levels on days one and two (28 February - 01 March) due to a recurrent coronal hole high-speed stream. Activity is expected to be at mostly quiet levels on day three (02 March) as the effects of the coronal hole wane. III. Event Probabilities 28 Feb-02 Mar Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 27 Feb 079 Predicted 28 Feb-02 Mar 084/084/084 90 Day Mean 27 Feb 081 V. Geomagnetic A Indices Observed Afr/Ap 26 Feb 001/002 Estimated Afr/Ap 27 Feb 005/005 Predicted Afr/Ap 28 Feb-02 Mar 007/007-007/010-007/007 VI. Geomagnetic Activity Probabilities 28 Feb-02 Mar A. Middle Latitudes Active 15/15/15 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor storm 05/05/05 Major-severe storm 01/01/01