:Product: 0207RSGA.txt :Issued: 2014 Feb 07 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 38 Issued at 2200Z on 07 Feb 2014 IA. Analysis of Solar Active Regions and Activity from 06/2100Z to 07/2100Z: Solar activity has been at moderate levels for the past 24 hours. The largest solar event of the period was a M2 event observed at 07/0456Z from Region 1967 (S13W64). Region 1968 (N13W59) also produced an M1/1n at 07/1029 UTC. There are currently 7 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is likely to be moderate with a slight chance for an X-class flare on days one and two (08 Feb, 09 Feb) and expected to be low with a chance for M-class flares and a slight chance for an X-class flare on day three (10 Feb). IIA. Geophysical Activity Summary 06/2100Z to 07/2100Z: 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 464 km/s at 06/2352Z. Total IMF reached 15 nT at 07/1853Z. The maximum southward component of Bz reached -8 nT at 07/2043Z. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (08 Feb), quiet to active levels on day two (09 Feb) and quiet levels on day three (10 Feb). Protons greater than 10 MeV have a slight chance of crossing threshold on days one and two (08 Feb, 09 Feb). III. Event probabilities 08 Feb-10 Feb Class M 60/60/40 Class X 20/20/10 Proton 10/10/05 PCAF green IV. Penticton 10.7 cm Flux Observed 07 Feb 178 Predicted 08 Feb-10 Feb 175/165/155 90 Day Mean 07 Feb 155 V. Geomagnetic A Indices Observed Afr/Ap 06 Feb 005/007 Estimated Afr/Ap 07 Feb 006/008 Predicted Afr/Ap 08 Feb-10 Feb 012/015-009/010-007/008 VI. Geomagnetic Activity Probabilities 08 Feb-10 Feb A. Middle Latitudes Active 35/35/15 Minor Storm 25/15/05 Major-severe storm 05/01/01 B. High Latitudes Active 10/15/15 Minor Storm 25/30/25 Major-severe storm 60/45/25