:Product: 0119RSGA.txt :Issued: 2010 Jan 19 2201 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 019 Issued at 2200Z on 19 Jan 2010 IA. Analysis of Solar Active Regions and Activity from 18/2100Z to 19/2100Z: Solar activity was moderate. The new region rotating on to the east limb (new Region 1041, near S27) produced an M2.3 flare at 19/1341Z and an M1.7 flare at 19/2035Z, as well as three C-flares. IB. Solar Activity Forecast: Solar activity is expected to be low to moderate. Occasional C-class flares are expected. Isolated M-class flares are likely. IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z: The geomagnetic field was quiet. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be quiet to unsettled, with isolated active levels at high latitudes, on day one (20 January) due to a coronal hole high-speed stream. Quiet levels are expected to return on days two and three (21-22 January). III. Event Probabilities 20 Jan-22 Jan Class M 60/60/60 Class X 05/05/05 Proton 05/05/05 PCAF Green IV. Penticton 10.7 cm Flux Observed 19 Jan 084 Predicted 20 Jan-22 Jan 084/084/084 90 Day Mean 19 Jan 077 V. Geomagnetic A Indices Observed Afr/Ap 18 Jan 002/003 Estimated Afr/Ap 19 Jan 002/004 Predicted Afr/Ap 20 Jan-22 Jan 007/010-005/005-005/005 VI. Geomagnetic Activity Probabilities 20 Jan-22 Jan A. Middle Latitudes Active 15/05/05 Minor storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/05/05 Minor storm 05/01/01 Major-severe storm 01/01/01