:Product: 0112RSGA.txt :Issued: 2014 Jan 12 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 12 Issued at 2200Z on 12 Jan 2014 IA. Analysis of Solar Active Regions and Activity from 11/2100Z to 12/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C6 event observed at 12/0005Z from Region 1944 (S10W69). There are currently 8 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one and two (13 Jan, 14 Jan) and expected to be low with a slight chance for an M-class flare on day three (15 Jan). IIA. Geophysical Activity Summary 11/2100Z to 12/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 717 km/s at 12/2009Z. Total IMF reached 8 nT at 12/0143Z. The maximum southward component of Bz reached -7 nT at 12/1842Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 11 pfu at 12/0420Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 165 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (13 Jan) and quiet levels on days two and three (14 Jan, 15 Jan). Protons greater than 10 Mev have a chance of crossing threshold on days one and two (13 Jan, 14 Jan). III. Event probabilities 13 Jan-15 Jan Class M 50/50/10 Class X 15/15/01 Proton 30/30/01 PCAF green IV. Penticton 10.7 cm Flux Observed 12 Jan 155 Predicted 13 Jan-15 Jan 155/145/140 90 Day Mean 12 Jan 153 V. Geomagnetic A Indices Observed Afr/Ap 11 Jan 003/002 Estimated Afr/Ap 12 Jan 005/006 Predicted Afr/Ap 13 Jan-15 Jan 005/006-006/005-006/005 VI. Geomagnetic Activity Probabilities 13 Jan-15 Jan A. Middle Latitudes Active 05/05/05 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 05/05/05