:Product: 0608RSGA.txt :Issued: 2017 Jun 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 159 Issued at 2200Z on 08 Jun 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 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 (09 Jun, 10 Jun, 11 Jun). 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 335 km/s at 08/1220Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 301 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one, two, and three (09 Jun, 10 Jun, 11 Jun). III. Event probabilities 09 Jun-11 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 08 Jun 074 Predicted 09 Jun-11 Jun 072/072/075 90 Day Mean 08 Jun 077 V. Geomagnetic A Indices Observed Afr/Ap 07 Jun 005/006 Estimated Afr/Ap 08 Jun 004/005 Predicted Afr/Ap 09 Jun-11 Jun 006/005-006/005-006/005 VI. Geomagnetic Activity Probabilities 09 Jun-11 Jun A. Middle Latitudes Active 10/10/10 Minor Storm 01/01/01 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 15/15/15 Major-severe storm 10/10/10