:Product: 1127RSGA.txt :Issued: 2014 Nov 27 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 331 Issued at 2200Z on 27 Nov 2014 IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C8 event observed at 27/0047Z from Region 2222 (S20E59). There are currently 8 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 (28 Nov, 29 Nov, 30 Nov). IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: 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 431 km/s at 27/1938Z. Total IMF reached 10 nT at 27/0716Z. The maximum southward component of Bz reached -8 nT at 27/1828Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 743 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (28 Nov, 29 Nov, 30 Nov). III. Event probabilities 28 Nov-30 Nov Class M 30/30/30 Class X 05/05/05 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 27 Nov 179 Predicted 28 Nov-30 Nov 180/185/185 90 Day Mean 27 Nov 150 V. Geomagnetic A Indices Observed Afr/Ap 26 Nov 004/003 Estimated Afr/Ap 27 Nov 008/008 Predicted Afr/Ap 28 Nov-30 Nov 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 28 Nov-30 Nov A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/20 Major-severe storm 10/10/10