:Product: 0213RSGA.txt :Issued: 2013 Feb 13 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 Solar Geophysical Activity Report and Forecast SDF Number 44 Issued at 2200Z on 13 Feb 2013 IA. Analysis of Solar Active Regions and Activity from 12/2100Z to 13/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 2 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be at very low levels with a chance for a C-class flare on days one, two, and three (14 Feb, 15 Feb, 16 Feb). IIA. Geophysical Activity Summary 12/2100Z to 13/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 418 km/s at 13/0352Z. Total IMF reached 11.3 nT at 13/1650Z. The maximum southward component of Bz reached -9.3 nT at 13/1831Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels for the next three days (14 Feb, 15 Feb, 16 Feb). III. Event probabilities 14 Feb-16 Feb Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 13 Feb 100 Predicted 14 Feb-16 Feb 105/105/110 90 Day Mean 13 Feb 117 V. Geomagnetic A Indices Observed Afr/Ap 12 Feb 003/003 Estimated Afr/Ap 13 Feb 005/006 Predicted Afr/Ap 14 Feb-16 Feb 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 14 Feb-16 Feb A. Middle Latitudes Active 05/05/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/15 Major-severe storm 10/05/10