:Product: 0622RSGA.txt :Issued: 2016 Jun 22 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 174 Issued at 2200Z on 22 Jun 2016 IA. Analysis of Solar Active Regions and Activity from 21/2100Z to 22/2100Z: Solar activity has been at very low levels for the past 24 hours. There are currently 2 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 (23 Jun, 24 Jun, 25 Jun). IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 395 km/s at 22/2037Z. Total IMF reached 13 nT at 22/1926Z. The maximum southward component of Bz reached -6 nT at 22/1548Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1181 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on days one and two (23 Jun, 24 Jun) and quiet to unsettled levels on day three (25 Jun). III. Event probabilities 23 Jun-25 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 22 Jun 078 Predicted 23 Jun-25 Jun 075/070/070 90 Day Mean 22 Jun 091 V. Geomagnetic A Indices Observed Afr/Ap 21 Jun 003/004 Estimated Afr/Ap 22 Jun 011/016 Predicted Afr/Ap 23 Jun-25 Jun 011/012-012/015-007/008 VI. Geomagnetic Activity Probabilities 23 Jun-25 Jun A. Middle Latitudes Active 20/25/15 Minor Storm 05/10/05 Major-severe storm 01/01/01 B. High Latitudes Active 20/15/20 Minor Storm 30/25/25 Major-severe storm 25/35/20