:Product: 0208RSGA.txt :Issued: 2017 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 2017 IA. Analysis of Solar Active Regions and Activity from 07/2100Z to 08/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 0 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low 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 levels for the past 24 hours. Solar wind speed reached a peak of 537 km/s at 07/2145Z. Total IMF reached 6 nT at 08/2035Z. The maximum southward component of Bz reached -4 nT at 08/1228Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 18550 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (09 Feb, 10 Feb, 11 Feb). III. Event probabilities 09 Feb-11 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Feb 073 Predicted 09 Feb-11 Feb 073/072/073 90 Day Mean 08 Feb 077 V. Geomagnetic A Indices Observed Afr/Ap 07 Feb 005/006 Estimated Afr/Ap 08 Feb 006/008 Predicted Afr/Ap 09 Feb-11 Feb 007/007-005/005-005/005 VI. Geomagnetic Activity Probabilities 09 Feb-11 Feb A. Middle Latitudes Active 10/05/05 Minor Storm 05/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/15 Major-severe storm 15/05/05