:Product: 1206RSGA.txt :Issued: 2016 Dec 06 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 341 Issued at 2200Z on 06 Dec 2016 IA. Analysis of Solar Active Regions and Activity from 05/2100Z to 06/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (07 Dec, 08 Dec, 09 Dec). IIA. Geophysical Activity Summary 05/2100Z to 06/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 389 km/s at 06/1355Z. Total IMF reached 10 nT at 06/1103Z. The maximum southward component of Bz reached -10 nT at 06/1138Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3472 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to minor storm levels on days one, two, and three (07 Dec, 08 Dec, 09 Dec). III. Event probabilities 07 Dec-09 Dec Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 06 Dec 080 Predicted 07 Dec-09 Dec 080/080/080 90 Day Mean 06 Dec 083 V. Geomagnetic A Indices Observed Afr/Ap 05 Dec 002/002 Estimated Afr/Ap 06 Dec 008/010 Predicted Afr/Ap 07 Dec-09 Dec 016/020-016/020-016/020 VI. Geomagnetic Activity Probabilities 07 Dec-09 Dec A. Middle Latitudes Active 30/30/30 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/20 Minor Storm 20/20/15 Major-severe storm 20/20/10