:Product: 1008RSGA.txt :Issued: 2014 Oct 08 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 281 Issued at 2200Z on 08 Oct 2014 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C2 event observed at 08/1651Z from Region 2182 (S16W42). There are currently 5 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be low on days one, two, and three (09 Oct, 10 Oct, 11 Oct). IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: 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 387 km/s at 08/2007Z. Total IMF reached 9 nT at 08/0900Z. The maximum southward component of Bz reached -8 nT at 08/1014Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 310 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at mostly quiet levels on days one and two (09 Oct, 10 Oct) with a chance for isolated active periods early on 09 Oct due to an enhanced magnetic field and possible night sector sub-storming. Quiet to unsettled levels are expected on day three (11 Oct). III. Event probabilities 09 Oct-11 Oct Class M 05/05/05 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Oct 126 Predicted 09 Oct-11 Oct 125/120/115 90 Day Mean 08 Oct 130 V. Geomagnetic A Indices Observed Afr/Ap 07 Oct 005/004 Estimated Afr/Ap 08 Oct 006/008 Predicted Afr/Ap 09 Oct-11 Oct 006/005-006/005-007/008 VI. Geomagnetic Activity Probabilities 09 Oct-11 Oct A. Middle Latitudes Active 15/15/15 Minor Storm 05/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/20/25 Major-severe storm 20/20/25