:Product: 0111RSGA.txt :Issued: 2013 Jan 11 2235 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 11 Issued at 2200Z on 11 Jan 2013 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1 event observed at 11/0911Z from Region 1654 (N08E31). There are currently 10 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be at moderate levels for the next three days (12 Jan, 13 Jan, 14 Jan). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: 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 350 km/s at 11/1941Z. Total IMF reached 8.7 nT at 11/2036Z. The maximum southward component of Bz reached -7.3 nT at 11/2029Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels for the next three days (12 Jan, 13 Jan, 14 Jan). III. Event probabilities 12 Jan-14 Jan Class M 60/60/60 Class X 05/05/05 Proton 01/01/05 PCAF green IV. Penticton 10.7 cm Flux Observed 11 Jan 172 Predicted 12 Jan-14 Jan 175/170/170 90 Day Mean 11 Jan 122 V. Geomagnetic A Indices Observed Afr/Ap 10 Jan 002/002 Estimated Afr/Ap 11 Jan 002/003 Predicted Afr/Ap 12 Jan-14 Jan 008/008-008/008-006/005 VI. Geomagnetic Activity Probabilities 12 Jan-14 Jan A. Middle Latitudes Active 10/10/05 Minor Storm 05/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/10 Major-severe storm 15/15/05