geomagnetic storm

noun

Examples of geomagnetic storm in a Sentence

Recent Examples on the Web
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Forecasters at the National Oceanic and Atmospheric Administration (NOAA) say more northern lights could flicker across parts of the country this evening, following the geomagnetic storms that swept through on Monday. Valerie Mesa, PEOPLE, 9 Dec. 2025 On another geomagnetic storm scale, NOAA ranks the event a G1, which is considered a minor event. Melina Khan, USA Today, 8 Dec. 2025 Geomagnetic activity will likely reach a G1 on the geomagnetic storm scale, ranking as a minor event, on Monday, before intensifying into a stronger G3 geomagnetic storm on Tuesday, NOAA predicted. Rebecca Schneid, Time, 8 Dec. 2025 The same geomagnetic storm that makes aurora sightings likely can disrupt power systems, navigation signals, and satellite functions due to heightened currents in Earth’s upper atmosphere and magnetic field changes. Hollie Silverman, MSNBC Newsweek, 7 Dec. 2025 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 13 Dec. 2025.

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