geomagnetic storm

noun

Examples of geomagnetic storm in a Sentence

Recent Examples on the Web
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The solar wind escaping from the aforementioned coronal hole is moving at a velocity of more than 310 miles per second, expected to reach Earth on Friday which could trigger a minor geomagnetic storm (G1). Skyler Caruso, People.com, 31 Jan. 2025 The resulting geomagnetic storm is expected to produce a moderate (G1-class) geomagnetic storm, which could cause weak fluctuations in power grids but also bring the northern lights to high latitude states like northern Maine and Michigan. Barbara A. Perry, Newsweek, 28 Jan. 2025 The agency expects a minor or greater geomagnetic storm—a disturbance of Earth’s magnetic field—on Saturday, which increases the likelihood of northern lights displays being visible to more people, as the effects of a recent coronal mass ejection reach Earth, according to NOAA’s three-day forecast. Ty Roush, Forbes, 24 Jan. 2025 CMEs are a combination of magnetic field and plumes of plasma that can cause geomagnetic storms on Earth. Meredith Garofalo, Space.com, 3 Jan. 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

Dictionary Entries Near geomagnetic storm

Cite this Entry

“Geomagnetic storm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/geomagnetic%20storm. Accessed 11 Feb. 2025.

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