:Product: 0105RSGA.txt :Issued: 2016 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 2016 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 2 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a slight chance for a C-class flare 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 to unsettled levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 507 km/s at 05/1612Z. Total IMF reached 17 nT at 05/1630Z. The maximum southward component of Bz reached -7 nT at 05/1317Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 6152 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (06 Jan), unsettled to active levels on day two (07 Jan) and quiet to active levels on day three (08 Jan). III. Event probabilities 06 Jan-08 Jan Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Jan 095 Predicted 06 Jan-08 Jan 095/095/100 90 Day Mean 05 Jan 109 V. Geomagnetic A Indices Observed Afr/Ap 04 Jan 004/002 Estimated Afr/Ap 05 Jan 006/007 Predicted Afr/Ap 06 Jan-08 Jan 013/020-015/020-010/012 VI. Geomagnetic Activity Probabilities 06 Jan-08 Jan A. Middle Latitudes Active 40/40/30 Minor Storm 25/20/10 Major-severe storm 05/05/01 B. High Latitudes Active 10/10/15 Minor Storm 25/30/30 Major-severe storm 60/60/40