:Product: 0206RSGA.txt :Issued: 2013 Feb 06 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 37 Issued at 2200Z on 06 Feb 2013 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C8 event observed at 06/0021Z from Region 1667 (N22E01). 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 (07 Feb, 08 Feb, 09 Feb). IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: 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 346 km/s at 06/1848Z. Total IMF reached 6.5 nT at 06/2036Z. The maximum southward component of Bz reached -6.1 nT at 06/2050Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 115 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels for the next three days (07 Feb, 08 Feb, 09 Feb). III. Event probabilities 07 Feb-09 Feb Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Feb 104 Predicted 07 Feb-09 Feb 105/105/105 90 Day Mean 06 Feb 120 V. Geomagnetic A Indices Observed Afr/Ap 05 Feb 002/003 Estimated Afr/Ap 06 Feb 002/002 Predicted Afr/Ap 07 Feb-09 Feb 006/005-007/008-012/018 VI. Geomagnetic Activity Probabilities 07 Feb-09 Feb A. Middle Latitudes Active 10/15/25 Minor Storm 01/05/10 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/20/25 Major-severe storm 10/20/35