:Product: 1009RSGA.txt :Issued: 2015 Oct 09 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 282 Issued at 2200Z on 09 Oct 2015 IA. Analysis of Solar Active Regions and Activity from 08/2100Z to 09/2100Z: Solar activity has been at very low levels for the past 24 hours. There is currently 1 numbered sunspot region 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 (10 Oct, 11 Oct, 12 Oct). IIA. Geophysical Activity Summary 08/2100Z to 09/2100Z: The geomagnetic field has been at unsettled to active levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 809 km/s at 09/0154Z. Total IMF reached 6 nT at 09/1830Z. The maximum southward component of Bz reached -5 nT at 09/1342Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 57093 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and two (10 Oct, 11 Oct) and quiet to minor storm levels on day three (12 Oct). III. Event probabilities 10 Oct-12 Oct Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 09 Oct 081 Predicted 10 Oct-12 Oct 080/085/090 90 Day Mean 09 Oct 102 V. Geomagnetic A Indices Observed Afr/Ap 08 Oct 041/048 Estimated Afr/Ap 09 Oct 020/027 Predicted Afr/Ap 10 Oct-12 Oct 011/012-010/012-013/020 VI. Geomagnetic Activity Probabilities 10 Oct-12 Oct A. Middle Latitudes Active 25/25/40 Minor Storm 10/10/25 Major-severe storm 01/01/05 B. High Latitudes Active 20/20/10 Minor Storm 30/30/25 Major-severe storm 35/35/60