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22 States To See Aurora Tuesday As Rare ‘Cannibal CME’ Strikes Earth

NOAA warns of severe geomagnetic storms with a G4 alert that may disrupt communications and power grids while creating auroras visible as far south as Alabama.

  • On November 12th, the National Oceanic and Atmospheric Administration issued a Severe Geomagnetic Storm Watch as auroras could appear across much of the northern United States and reach Alabama and Northern California.
  • A series of CMEs since Sunday has erupted, with the latest linked to an X5.1-class solar flare from Region 4274 around 4 a.m., complicating timing forecasts.
  • Historical events show that geomagnetic storms can disrupt power grids, communication networks, GPS systems and satellites, but utilities and companies can activate safeguards; the 1859 Carrington Event and 1989 Quebec blackout demonstrate real impacts.
  • NOAA urged U.S. stargazers to monitor the sky after dark Tuesday and check spaceweather.gov, as forecasters say clouds are clearing and the best viewing window is 10 p.m. to 2 a.m.
  • Unusually active solar conditions have pushed auroras far from high latitudes to Germany, the United Kingdom, New England and New York City, while NOAA forecasters await solar wind measurements about 1 million miles from Earth.
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Forbes broke the news in United States on Tuesday, November 11, 2025.
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