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Geomagnetic Storm Sparks Northern Lights Visibility Across 19 US States

Fast Company March 18, 2026

Tonight, a significant geomagnetic storm will make the aurora borealis visible across a wide swath of the United States, from Washington to Pennsylvania. This rare event, predicted by NOAA, offers a widespread opportunity to witness the spectacular celestial phenomenon.

Key Intelligence

  • NOAA's Space Weather Prediction Center forecasts the northern lights will be visible tonight, Wednesday, March 18, into Thursday, March 19.
  • Expect visibility in nearly 19 U.S. states, including areas typically not associated with aurora sightings like Michigan and Pennsylvania.
  • The display is a direct result of a significant geomagnetic storm, making it a powerful and widespread event.
  • This offers a rare chance for many Americans to observe the aurora borealis, typically seen much further north.
  • The National Oceanic and Atmospheric Administration (NOAA) is the primary source for this celestial forecast.