:Product: 1107RSGA.txt :Issued: 2015 Nov 07 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 311 Issued at 2200Z on 07 Nov 2015 IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C3 event observed at 07/0021Z from Region 2448 (N05E37). There are currently 5 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a slight chance for an M-class flare on days one, two, and three (08 Nov, 09 Nov, 10 Nov). IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic field has been at unsettled to major storm levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 719 km/s at 07/0257Z. Total IMF reached 20 nT at 06/2109Z. The maximum southward component of Bz reached -16 nT at 06/2232Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 5714 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to minor storm levels on day one (08 Nov) and quiet to active levels on days two and three (09 Nov, 10 Nov). III. Event probabilities 08 Nov-10 Nov Class M 15/15/15 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 07 Nov 115 Predicted 08 Nov-10 Nov 115/115/115 90 Day Mean 07 Nov 104 V. Geomagnetic A Indices Observed Afr/Ap 06 Nov 011/012 Estimated Afr/Ap 07 Nov 028/045 Predicted Afr/Ap 08 Nov-10 Nov 014/020-014/018-012/015 VI. Geomagnetic Activity Probabilities 08 Nov-10 Nov A. Middle Latitudes Active 40/25/25 Minor Storm 20/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 10/15/15 Minor Storm 25/30/30 Major-severe storm 50/30/30