extratropical cyclone

ex·​tra·​trop·​i·​cal cyclone | \ ˌek-strə-ˌträ-pi-kəl- How to pronounce extratropical cyclone (audio) \

Definition of extratropical cyclone

: a cyclone in the middle or high latitudes often containing a cold front that extends toward the equator for hundreds of miles

Examples of extratropical cyclone in a Sentence

Recent Examples on the Web

The entire system acquired the classic, comma-cloud shape of an extratropical cyclone, so common throughout the year across North America. Jeff Halverson, Washington Post, "Harvey’s two-step across Texas: The peculiar meteorology behind a U.S. rain record," 31 Aug. 2017 Ophelia arrives on the 30th anniversary of the Great Storm of 1987, another extratropical cyclone that killed 20. Jen Kirby, Daily Intelligencer, "Ex-Hurricane Ophelia Wallops Ireland," 16 Oct. 2017 The standard warm and cold fronts of the middle latitudes—which meteorologists call baroclinic storms or extratropical cyclones—determine where a massive cyclone makes landfall. Robinson Meyer, The Atlantic, "The Irony of How Hurricanes Move," 6 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'extratropical cyclone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of extratropical cyclone

1923, in the meaning defined above

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The first known use of extratropical cyclone was in 1923

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More from Merriam-Webster on extratropical cyclone

Britannica.com: Encyclopedia article about extratropical cyclone

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