:Product: 0627RSGA.txt :Issued: 2016 Jun 27 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 179 Issued at 2200Z on 27 Jun 2016 IA. Analysis of Solar Active Regions and Activity from 26/2100Z to 27/2100Z: 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 (28 Jun, 29 Jun, 30 Jun). IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic field has been at quiet to active levels for the past 24 hours. Solar wind speed reached a peak of 547 km/s at 27/0321Z. Total IMF reached 6 nT at 26/2148Z. The maximum southward component of Bz reached -6 nT at 26/2216Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 1257 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet levels on days one and two (28 Jun, 29 Jun) and quiet to active levels on day three (30 Jun). III. Event probabilities 28 Jun-30 Jun Class M 01/01/01 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 27 Jun 075 Predicted 28 Jun-30 Jun 075/078/080 90 Day Mean 27 Jun 090 V. Geomagnetic A Indices Observed Afr/Ap 26 Jun 011/011 Estimated Afr/Ap 27 Jun 009/010 Predicted Afr/Ap 28 Jun-30 Jun 006/005-006/005-012/015 VI. Geomagnetic Activity Probabilities 28 Jun-30 Jun A. Middle Latitudes Active 05/05/30 Minor Storm 01/01/10 Major-severe storm 01/01/01 B. High Latitudes Active 15/15/15 Minor Storm 10/15/35 Major-severe storm 05/05/40