:Product: 0914RSGA.txt :Issued: 2016 Sep 14 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 258 Issued at 2200Z on 14 Sep 2016 IA. Analysis of Solar Active Regions and Activity from 13/2100Z to 14/2100Z: 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 (15 Sep, 16 Sep, 17 Sep). IIA. Geophysical Activity Summary 13/2100Z to 14/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 356 km/s at 14/1811Z. Total IMF reached 9 nT at 14/1911Z. The maximum southward component of Bz reached -8 nT at 14/1944Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2066 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and two (15 Sep, 16 Sep) and quiet levels on day three (17 Sep). III. Event probabilities 15 Sep-17 Sep Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 14 Sep 085 Predicted 15 Sep-17 Sep 085/085/085 90 Day Mean 14 Sep 085 V. Geomagnetic A Indices Observed Afr/Ap 13 Sep 004/005 Estimated Afr/Ap 14 Sep 007/009 Predicted Afr/Ap 15 Sep-17 Sep 007/008-007/008-007/008 VI. Geomagnetic Activity Probabilities 15 Sep-17 Sep A. Middle Latitudes Active 10/10/10 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/20 Major-severe storm 15/15/15