:Product: 0205RSGA.txt :Issued: 2014 Feb 05 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 36 Issued at 2200Z on 05 Feb 2014 IA. Analysis of Solar Active Regions and Activity from 04/2100Z to 05/2100Z: 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 05/1620Z from Region 1967 (S12W38). 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 (06 Feb, 07 Feb, 08 Feb). IIA. Geophysical Activity Summary 04/2100Z to 05/2100Z: 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 450 km/s at 05/2054Z. Total IMF reached 11 nT at 05/0541Z. The maximum southward component of Bz reached -6 nT at 05/2048Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (06 Feb, 07 Feb) and quiet to active levels on day three (08 Feb). Protons have a slight chance of crossing threshold on days one, two, and three (06 Feb, 07 Feb, 08 Feb). III. Event probabilities 06 Feb-08 Feb Class M 80/80/80 Class X 25/25/25 Proton 10/10/10 PCAF green IV. Penticton 10.7 cm Flux Observed 05 Feb 194 Predicted 06 Feb-08 Feb 198/195/190 90 Day Mean 05 Feb 154 V. Geomagnetic A Indices Observed Afr/Ap 04 Feb 004/003 Estimated Afr/Ap 05 Feb 004/005 Predicted Afr/Ap 06 Feb-08 Feb 006/005-006/005-008/012 VI. Geomagnetic Activity Probabilities 06 Feb-08 Feb A. Middle Latitudes Active 05/05/20 Minor Storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/20 Major-severe storm 05/05/25