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yesterday

G1 Geomagnetic Storm to Illuminate Northern Lights Across 15 U.S. States After ISS Sighting

A G1 storm forecast on May 28 during the current solar maximum is expected to push auroras farther south than usual.

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People living in parts of 15 states will have the chance to view the Northern Lights overnight on Tuesday.
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Overview

  • NASA astronaut Nichole Ayers unexpectedly filmed a rare green and purple aurora borealis display from the International Space Station on May 23.
  • NOAA’s Space Weather Prediction Center forecasts a G1 (minor) geomagnetic storm between 0600 and 1200 UTC on May 28 with a predicted Kp index of 5.
  • The storm is expected to make the Northern Lights visible across 15 northern-tier U.S. states and parts of Canada.
  • The current solar maximum, which began in October 2024, has increased coronal holes and intensified solar wind streams driving stronger geomagnetic activity.
  • Observers are advised to seek dark, north-facing vantage points between 10 p.m. and 2 a.m. local time and to monitor NOAA’s real-time updates for optimal viewing.