:Product: 0611RSGA.txt :Issued: 2026 Jun 11 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 162 Issued at 2200Z on 11 Jun 2026 IA. Analysis of Solar Active Regions and Activity from 10/2100Z to 11/2100Z: Solar activity has been at low levels for the past 24 hours. There are currently 5 numbered sunspot regions on the disk. IB. Solar Activity Forecast: Solar activity is expected to be low with a chance for M-class flares and a slight chance for an X-class flare on days one, two, and three (12 Jun, 13 Jun, 14 Jun). IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic field has been at quiet to minor storm levels for the past 24 hours. Solar wind speed reached a peak of 505 km/s at 11/2100Z. Total IMF reached 14 nT at 11/2053Z. The maximum southward component of Bz reached -12 nT at 11/2037Z. Electrons greater than 2 MeV at geosynchronous orbit reached a peak level of 585 pfu. IIB. Geophysical Activity Forecast: The geomagnetic field is expected to be at quiet to minor storm levels on day one (12 Jun), unsettled to major storm levels on day two (13 Jun) and unsettled to minor storm levels on day three (14 Jun). III. Event probabilities 12 Jun-14 Jun Class M 45/45/45 Class X 10/10/10 Proton 05/05/05 PCAF green IV. Penticton 10.7 cm Flux Observed 11 Jun 127 Predicted 12 Jun-14 Jun 128/128/125 90 Day Mean 11 Jun 126 V. Geomagnetic A Indices Observed Afr/Ap 10 Jun 007/007 Estimated Afr/Ap 11 Jun 014/017 Predicted Afr/Ap 12 Jun-14 Jun 015/020-025/036-016/022 VI. Geomagnetic Activity Probabilities 12 Jun-14 Jun A. Middle Latitudes Active 45/30/45 Minor Storm 25/45/25 Major-severe storm 05/15/05 B. High Latitudes Active 10/05/10 Minor Storm 25/15/25 Major-severe storm 70/75/60