:Product: 1126RSGA.txt :Issued: 2013 Nov 26 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 330 Issued at 2200Z on 26 Nov 2013 IA. Analysis of Solar Active Regions and Activity from 25/2100Z to 26/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C1 event observed at 26/0129Z. There are currently 3 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares on days one, two, and three (27 Nov, 28 Nov, 29 Nov). IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed, as measured by the ACE spacecraft, reached a peak speed of 350 km/s at 26/1429Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on day one (27 Nov) and quiet levels on days two and three (28 Nov, 29 Nov). III. Event probabilities 27 Nov-29 Nov Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 26 Nov 116 Predicted 27 Nov-29 Nov 120/120/120 90 Day Mean 26 Nov 127 V. Geomagnetic A Indices Observed Afr/Ap 25 Nov 002/001 Estimated Afr/Ap 26 Nov 004/005 Predicted Afr/Ap 27 Nov-29 Nov 008/008-006/005-006/005 VI. Geomagnetic Activity Probabilities 27 Nov-29 Nov A. Middle Latitudes Active 15/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 25/15/15 Major-severe storm 20/10/10