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 As ex-Ida morphs into an extratropical cyclone, more unstable and humid air is expected to surge over the Mid Atlantic, enabling the development of heavy showers and thunderstorms. Washington Post, 30 Aug. 2021 Lorenzo attained its peak intensity over the open waters of the Atlantic before weakening considerably and transitioning into an extratropical cyclone. Allison Chinchar And Haley Brink, CNN, 17 Mar. 2021 Paulette has become a strong extratropical cyclone over the north Atlantic, the National Hurricane Center said Wednesday. Carlie Wells, NOLA.com, 16 Sep. 2020 But despite its recent burst of strength, the small storm is expected to become a extratropical cyclone within the next two days. David Harris, orlandosentinel.com, 26 Oct. 2019 First, Tropical Storm Melissa was classified as a extratropical cyclone after cool air began circulating around the northern core Monday, according to the NHC’s 11 a.m. update. Joe Mario Pedersen, orlandosentinel.com, 14 Oct. 2019 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, 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, 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, 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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Cite this Entry

“Extratropical cyclone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/extratropical%20cyclone. Accessed 6 Dec. 2021.

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More from Merriam-Webster on extratropical cyclone

Britannica.com: Encyclopedia article about extratropical cyclone


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