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NOAA Extends G3 Geomagnetic Storm Watch as Aurora Borealis Expands Southward

The storm, driven by recent solar eruptions, may disrupt satellites and radio navigation while offering rare aurora sightings across parts of the U.S.

Aurora forecast today: These US states to witness dazzling northern lights today amid powerful G3 storm
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Overview

  • NOAA has extended a G3 (Strong) Geomagnetic Storm Watch through April 17 due to continued effects of coronal mass ejections (CMEs) from the sun.
  • Auroras are forecast to be visible as far south as Kentucky, Oregon, and Illinois, with peak viewing expected between 10 p.m. and 2 a.m. local time in dark, north-facing locations.
  • The storm follows powerful solar flares released on April 13, with geomagnetic activity expected to peak at a Kp index of 5–5.33 over the next 24 hours.
  • Potential minor disruptions include satellite surface charging, increased drag on low-Earth-orbit satellites, and intermittent issues with radio navigation systems.
  • The sun is currently at the peak of its 11-year activity cycle, increasing the frequency and intensity of solar events like CMEs and geomagnetic storms.