:Product: 0604RSGA.txt :Issued: 2016 Jun 04 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 156 Issued at 2200Z on 04 Jun 2016 IA. Analysis of Solar Active Regions and Activity from 03/2100Z to 04/2100Z: 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 with a slight chance for a C-class flare on days one, two, and three (05 Jun, 06 Jun, 07 Jun). IIA. Geophysical Activity Summary 03/2100Z to 04/2100Z: The geomagnetic field has been at quiet levels for the past 24 hours. Solar wind speed reached a peak of 347 km/s at 04/1107Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1520 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at unsettled to major storm levels on day one (05 Jun), quiet to active levels on day two (06 Jun) and quiet to unsettled levels on day three (07 Jun). III. Event probabilities 05 Jun-07 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 04 Jun 080 Predicted 05 Jun-07 Jun 078/078/082 90 Day Mean 04 Jun 092 V. Geomagnetic A Indices Observed Afr/Ap 03 Jun 005/002 Estimated Afr/Ap 04 Jun 012/016 Predicted Afr/Ap 05 Jun-07 Jun 025/042-013/015-007/008 VI. Geomagnetic Activity Probabilities 05 Jun-07 Jun A. Middle Latitudes Active 30/30/20 Minor Storm 35/15/05 Major-severe storm 20/01/01 B. High Latitudes Active 10/15/20 Minor Storm 20/30/25 Major-severe storm 70/40/25