:Product: 0116RSGA.txt :Issued: 2010 Jan 16 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 016 Issued at 2200Z on 16 Jan 2010 IA. Analysis of Solar Active Regions and Activity from 15/2100Z to 16/2100Z: Solar activity has been at very low levels for the past 24 hours. Region 1040 (N29W57) has decayed, both in areal coverage and spot number, but retained its beta magnetic configuration. IB. Solar Activity Forecast: Solar activity is expected to remain at very low to low levels. B-class flares and isolated C-class flares are expected. There is also a slight chance for an isolated M-class flare. IIA. Geophysical Activity Summary 15/2100Z to 16/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to remain at quiet levels for day one (17 January). On day two (18 January), quiet to unsettled levels are expected due the arrival of a coronal hole high-speed stream. On day three (19 January), quiet levels are expected to return as the effects subside. III. Event Probabilities 17 Jan-19 Jan Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 16 Jan 084 Predicted 17 Jan-19 Jan 084/082/082 90 Day Mean 16 Jan 076 V. Geomagnetic A Indices Observed Afr/Ap 15 Jan 002/003 Estimated Afr/Ap 16 Jan 002/003 Predicted Afr/Ap 17 Jan-19 Jan 005/005-007/007-005/005 VI. Geomagnetic Activity Probabilities 17 Jan-19 Jan A. Middle Latitudes Active 05/10/05 Minor storm 01/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 05/20/05 Minor storm 01/10/01 Major-severe storm 01/01/01