:Product: 1023RSGA.txt :Issued: 2014 Oct 23 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 296 Issued at 2200Z on 23 Oct 2014 IA. Analysis of Solar Active Regions and Activity from 22/2100Z to 23/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M1 event observed at 23/0950Z from Region 2192 (S14W06). There are currently 5 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 (24 Oct, 25 Oct, 26 Oct). IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 503 km/s at 22/2349Z. Total IMF reached 6 nT at 23/2100Z. The maximum southward component of Bz reached -5 nT at 23/1717Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 6898 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to active levels on day one (24 Oct) and quiet to unsettled levels on days two and three (25 Oct, 26 Oct). Protons have a chance of crossing threshold on days one through three (24-26 Oct). III. Event probabilities 24 Oct-26 Oct Class M 85/85/85 Class X 45/45/45 Proton 35/40/45 PCAF green IV. Penticton 10.7 cm Flux Observed 23 Oct 227 Predicted 24 Oct-26 Oct 230/230/230 90 Day Mean 23 Oct 138 V. Geomagnetic A Indices Observed Afr/Ap 22 Oct 010/011 Estimated Afr/Ap 23 Oct 008/010 Predicted Afr/Ap 24 Oct-26 Oct 012/015-009/010-007/010 VI. Geomagnetic Activity Probabilities 24 Oct-26 Oct A. Middle Latitudes Active 30/25/20 Minor Storm 15/05/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 30/30/25 Major-severe storm 45/30/25