G1-G3 Still Likely Tonight, 12 Nov, with G4 Still Possible
published: Thursday, November 13, 2025 22:35 UTC UTC
Final CME arrived and passing over Earth now. Conditions generally weakening, but variable. Strong solar wind speed and periods of favorable magnetic field orientation are driving up geomagnetic storms to G1-G3; with G4 still possible tonight. Stay aware at spaceweather.gov