geomagnetic storm

noun

Examples of geomagnetic storm in a Sentence

Recent Examples on the Web
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The northern lights are most likely to appear in high-latitude regions such as Alaska, northern Canada, Iceland, Scandinavia, and parts of northern Europe if geomagnetic storm levels reach G1 or G2, as per NOAA. Valerie Mesa, PEOPLE, 9 Apr. 2026 Visibility will depend on cloud cover, local weather conditions, and the strength of the geomagnetic storm when the CME reaches Earth. Amanda Greenwood, MSNBC Newsweek, 31 Mar. 2026 This, paired with a moderate to strong geomagnetic storm, could make the lights viewable even further south than usual, extending as far as Illinois and Oregon. Mary Walrath-Holdridge, USA Today, 18 Mar. 2026 On Wednesday night, Iowa sits within reach of the geomagnetic storm, giving much of the state a real chance to see the northern lights. Cooper Worth, Des Moines Register, 18 Mar. 2026 See All Example Sentences for geomagnetic storm

Word History

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of geomagnetic storm was in 1941

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Cite this Entry

“Geomagnetic storm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geomagnetic%20storm. Accessed 15 Apr. 2026.

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