:Product: 0627RSGA.txt :Issued: 2022 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 178 Issued at 2200Z on 27 Jun 2022 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 2 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be very low with a chance for a C-class flares and a slight chance for an M-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 699 km/s at 26/2122Z. Total IMF reached 7 nT at 26/2144Z. The maximum southward component of Bz reached -5 nT at 26/2222Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 3636 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to active levels on day one (28 Jun), quiet to unsettled levels on day two (29 Jun) and quiet levels on day three (30 Jun). III. Event probabilities 28 Jun-30 Jun Class M 10/10/10 Class X 01/01/01 Proton 01/01/01 PCAF green IV. Penticton 10.7 cm Flux Observed 27 Jun 098 Predicted 28 Jun-30 Jun 095/095/095 90 Day Mean 27 Jun 129 V. Geomagnetic A Indices Observed Afr/Ap 26 Jun 015/021 Estimated Afr/Ap 27 Jun 013/015 Predicted Afr/Ap 28 Jun-30 Jun 009/012-010/010-006/005 VI. Geomagnetic Activity Probabilities 28 Jun-30 Jun A. Middle Latitudes Active 35/25/10 Minor Storm 15/05/01 Major-severe storm 01/01/01 B. High Latitudes Active 10/20/15 Minor Storm 30/30/20 Major-severe storm 50/30/10