:Product: 1029RSGA.txt :Issued: 2013 Oct 29 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 302 Issued at 2200Z on 29 Oct 2013 IA. Analysis of Solar Active Regions and Activity from 28/2100Z to 29/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C9 event observed at 29/1831Z from Region 1875 (N06W92). There are currently 8 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be moderate with a chance for X-class flares on days one, two, and three (30 Oct, 31 Oct, 01 Nov). IIA. Geophysical Activity Summary 28/2100Z to 29/2100Z: 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 367 km/s at 29/0940Z. Total IMF reached 12 nT at 29/1225Z. The maximum southward component of Bz reached -9 nT at 29/1012Z. Protons greater than 10 MeV at geosynchronous orbit reached a peak level of 4 pfu at 29/0140Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 732 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one and three (30 Oct, 01 Nov) and unsettled to minor storm levels on day two (31 Oct). Protons have a chance of crossing threshold on days one, two, and three (30 Oct, 31 Oct, 01 Nov). III. Event probabilities 30 Oct-01 Nov Class M 60/60/60 Class X 25/25/25 Proton 25/25/25 PCAF yellow IV. Penticton 10.7 cm Flux Observed 29 Oct 153 Predicted 30 Oct-01 Nov 150/145/140 90 Day Mean 29 Oct 116 V. Geomagnetic A Indices Observed Afr/Ap 28 Oct 002/001 Estimated Afr/Ap 29 Oct 006/008 Predicted Afr/Ap 30 Oct-01 Nov 011/012-017/024-010/012 VI. Geomagnetic Activity Probabilities 30 Oct-01 Nov A. Middle Latitudes Active 20/45/20 Minor Storm 05/20/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/20 Major-severe storm 20/35/25