extratropical cyclone

noun

ex·​tra·​trop·​i·​cal cyclone ˌek-strə-ˌträ-pi-kəl- How to pronounce extratropical cyclone (audio)
: 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
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In 1950, an extratropical cyclone impacted 22 states around the holiday week, as significant winds, heavy rain, and blizzard conditions killed 353 and injured 160. Simmone Shah, Time, 25 Nov. 2025 Storm Amy is a powerful extratropical cyclone which began as Hurricane Humberto. Escher Walcott, PEOPLE, 6 Oct. 2025 In September, 2024, southeastern Morocco experienced a rare Sahara Desert flood caused by an extratropical cyclone. Cecilia Rodriguez, Forbes.com, 29 June 2025 In the winter and early spring, cold air funneling south on the northwest side of strong extratropical cyclones can even lead to blizzards. Chris Nowotarski, The Conversation, 20 Mar. 2025 While Leach said the impacts of the climate crisis on extratropical cyclones remain uncertain, some studies suggest the most severe storms may be getting stronger with climate change. Sophie Tanno, CNN, 24 Jan. 2025

Word History

First Known Use

1923, in the meaning defined above

Time Traveler
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 Jul. 2026.

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