:Product: 0208RSGA.txt :Issued: 2015 Feb 08 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 39 Issued at 2200Z on 08 Feb 2015 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at low levels for the past 24 hours. The largest solar event of the period was a C2 event observed at 08/0558Z from Region 2277 (N09W70). There are currently 4 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 (09 Feb, 10 Feb, 11 Feb). IIA. Geophysical Activity Summary 07/2100Z to 08/2100Z: 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 643 km/s at 08/1504Z. Total IMF reached 10 nT at 07/2111Z. The maximum southward component of Bz reached -9 nT at 08/0310Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 276 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to unsettled levels on days one, two, and three (09 Feb, 10 Feb, 11 Feb). III. Event probabilities 09 Feb-11 Feb Class M 30/30/30 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Feb 153 Predicted 09 Feb-11 Feb 150/150/150 90 Day Mean 08 Feb 154 V. Geomagnetic A Indices Observed Afr/Ap 07 Feb 009/010 Estimated Afr/Ap 08 Feb 010/009 Predicted Afr/Ap 09 Feb-11 Feb 009/010-007/008-007/008 VI. Geomagnetic Activity Probabilities 09 Feb-11 Feb A. Middle Latitudes Active 20/15/15 Minor Storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 30/25/25 Major-severe storm 30/20/20