:Product: 0210RSGA.txt :Issued: 2013 Feb 10 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 41 Issued at 2200Z on 10 Feb 2013 IA. Analysis of Solar Active Regions and Activity from 09/2100Z to 10/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be at low levels on days one, two, and three (11 Feb, 12 Feb, 13 Feb). IIA. Geophysical Activity Summary 09/2100Z to 10/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 425 km/s at 09/2223Z. Total IMF reached 7 nT at 10/0048Z. The maximum southward component of Bz reached -5.3 nT at 10/0414Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels for the next three days (11 Feb, 12 Feb, 13 Feb). III. Event probabilities 11 Feb-13 Feb Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 10 Feb 106 Predicted 11 Feb-13 Feb 105/105/100 90 Day Mean 10 Feb 119 V. Geomagnetic A Indices Observed Afr/Ap 09 Feb 003/002 Estimated Afr/Ap 10 Feb 004/004 Predicted Afr/Ap 11 Feb-13 Feb 005/005-008/008-005/005 VI. Geomagnetic Activity Probabilities 11 Feb-13 Feb A. Middle Latitudes Active 10/10/10 Minor Storm 01/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/20/15 Major-severe storm 10/20/10