G4 ‘Severe’ Solar Storm Today (Nov. 12, 2025): X5.1 Flare Triggers Radio Blackouts; Northern Lights Stretch From Mexico to Australia
What’s happening now The U.S. National Oceanic and Atmospheric Administration (NOAA) reports that G4 (Severe) geomagnetic storm levels were reached at 01:20 UTC on Nov. 12 and that G1–G4 conditions could continue overnight, driven by successive coronal mass ejections (CMEs). NOAA Space Weather Prediction Center+1 In a midday update, NOAA added that strong (G3) storming has persisted and that the Nov. 11 CME is still expected to keep elevated storm levels going into Nov. 14 (UTC)—meaning another night or two of aurora potential and intermittent space‑weather impacts. NOAA Space Weather Prediction Center Across the Atlantic, the UK Met Office notes that