:Product: 0105RSGA.txt :Issued: 2014 Jan 05 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 5 Issued at 2200Z on 05 Jan 2014 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: 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 04/2252Z from Region 1936 (S15W90). There are currently 7 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be moderate with a chance for X-class flares on days one, two, and three (06 Jan, 07 Jan, 08 Jan). IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: 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 505 km/s at 05/0329Z. Total IMF reached 5 nT at 04/2256Z. The maximum southward component of Bz reached -4 nT at 05/0635Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 694 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on day one (06 Jan), quiet to minor storm levels on day two (07 Jan) and unsettled to active levels on day three (08 Jan). Protons have a chance of crossing threshold on days one, two, and three (06 Jan, 07 Jan, 08 Jan). III. Event probabilities 06 Jan-08 Jan Class M 75/75/75 Class X 30/30/30 Proton 30/30/30 PCAF yellow IV. Penticton 10.7 cm Flux Observed 05 Jan 218 Predicted 06 Jan-08 Jan 220/220/215 90 Day Mean 05 Jan 148 V. Geomagnetic A Indices Observed Afr/Ap 04 Jan 006/004 Estimated Afr/Ap 05 Jan 004/005 Predicted Afr/Ap 06 Jan-08 Jan 006/005-011/015-015/018 VI. Geomagnetic Activity Probabilities 06 Jan-08 Jan A. Middle Latitudes Active 05/30/25 Minor Storm 01/10/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/10/15 Minor Storm 15/20/30 Major-severe storm 05/40/35