geomagnetic storm

noun

Examples of geomagnetic storm in a Sentence

Recent Examples on the Web
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With a Kp index of four — on a scale between zero and nine — tonight’s aurora activity is a result of Monday’s strong to severe geomagnetic storms. Valerie Mesa, People.com, 2 Sep. 2025 Topline The northern lights may be visible in a selection of states just south of the Canadian border on Tuesday, following a brief period of geomagnetic storms earlier in the week, according to the National Oceanic and Atmospheric Administration. Ty Roush, Forbes.com, 2 Sep. 2025 The National Oceanic and Atmospheric Administration's Space Weather Prediction Center issued a geomagnetic storm watch for Monday and Tuesday. Jenna Sundel, MSNBC Newsweek, 2 Sep. 2025 Scientists rank space weather conditions on a scale of five, from minor (G1) to severe (G5), and Monday night’s forecast shows the geomagnetic storm will likely cause moderate, G2- or G3-level conditions early in the night. Jackie Wattles, CNN Money, 1 Sep. 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 9 Sep. 2025.

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