:Product: 0211RSGA.txt :Issued: 2017 Feb 11 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 42 Issued at 2200Z on 11 Feb 2017 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 1 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a slight chance for a C-class flare on days one, two, and three (12 Feb, 13 Feb, 14 Feb). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field has been at quiet to unsettled levels for the past 24 hours. Solar wind speed reached a peak of 462 km/s at 11/0500Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 2343 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (12 Feb, 13 Feb) and quiet to unsettled levels on day three (14 Feb). III. Event probabilities 12 Feb-14 Feb Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 11 Feb 076 Predicted 12 Feb-14 Feb 076/078/078 90 Day Mean 11 Feb 077 V. Geomagnetic A Indices Observed Afr/Ap 10 Feb 005/006 Estimated Afr/Ap 11 Feb 006/005 Predicted Afr/Ap 12 Feb-14 Feb 006/005-006/005-007/008 VI. Geomagnetic Activity Probabilities 12 Feb-14 Feb A. Middle Latitudes Active 10/10/20 Minor Storm 01/01/05 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 20/20/30 Major-severe storm 10/10/30