:Product: 0109RSGA.txt :Issued: 2013 Jan 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 9 Issued at 2200Z on 09 Jan 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 09/0956Z from Region 1654 (N10E60). There are currently 9 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be at low levels for days one, two, and three (10 Jan, 11 Jan, 12 Jan) with a chance for moderate levels. 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 374 km/s at 09/0444Z. Total IMF reached 6.6 nT at 08/2308Z. The maximum southward component of Bz reached -5.1 nT at 08/2309Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels for days one, two, and three (10 Jan, 11 Jan, 12 Jan) with a chance of unsettled levels on day three (12 Jan). III. Event probabilities 10 Jan-12 Jan Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 09 Jan 169 Predicted 10 Jan-12 Jan 175/175/175 90 Day Mean 09 Jan 121 V. Geomagnetic A Indices Observed Afr/Ap 08 Jan 003/002 Estimated Afr/Ap 09 Jan 003/003 Predicted Afr/Ap 10 Jan-12 Jan 006/005-005/005-007/007 VI. Geomagnetic Activity Probabilities 10 Jan-12 Jan A. Middle Latitudes Active 05/05/10 Minor Storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 10/10/20 Major-severe storm 05/05/15