:Product: 1030RSGA.txt :Issued: 2015 Oct 30 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 303 Issued at 2200Z on 30 Oct 2015 IA. Analysis of Solar Active Regions and Activity from 29/2100Z to 30/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C7 event observed at 30/2016Z from Region 2443 (N06E56). There are currently 5 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares on days one, two, and three (31 Oct, 01 Nov, 02 Nov). IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: 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 402 km/s at 30/1826Z. Total IMF reached 9 nT at 30/0845Z. The maximum southward component of Bz reached -5 nT at 29/2125Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 6 pfu at 29/2125Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (31 Oct, 01 Nov, 02 Nov). III. Event probabilities 31 Oct-02 Nov Class M 40/40/40 Class X 05/05/05 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 30 Oct 121 Predicted 31 Oct-02 Nov 120/120/120 90 Day Mean 30 Oct 104 V. Geomagnetic A Indices Observed Afr/Ap 29 Oct 004/003 Estimated Afr/Ap 30 Oct 007/009 Predicted Afr/Ap 31 Oct-02 Nov 008/008-008/008-007/008 VI. Geomagnetic Activity Probabilities 31 Oct-02 Nov A. Middle Latitudes Active 15/15/15 Minor Storm 05/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 20/20/20 Minor Storm 30/30/25 Major-severe storm 20/20/20