:Product: 0209RSGA.txt :Issued: 2013 Feb 09 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 40 Issued at 2200Z on 09 Feb 2013 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C2 event observed at 09/0640Z. 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 (10 Feb, 11 Feb, 12 Feb). IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: 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 487 km/s at 09/0319Z. Total IMF reached 6.5 nT at 09/0114Z. The maximum southward component of Bz reached -3.4 nT at 09/0322Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet on days 1 and 2 (10-11 Feb) and quiet to unsettled levels for day 3 (12 Feb). III. Event probabilities 10 Feb-12 Feb Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 09 Feb 108 Predicted 10 Feb-12 Feb 110/105/105 90 Day Mean 09 Feb 119 V. Geomagnetic A Indices Observed Afr/Ap 08 Feb 008/008 Estimated Afr/Ap 09 Feb 004/004 Predicted Afr/Ap 10 Feb-12 Feb 005/005-005/005-008/008 VI. Geomagnetic Activity Probabilities 10 Feb-12 Feb A. Middle Latitudes Active 05/10/10 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 05/10/10