flash flood

noun

: a local flood of short duration generally resulting from heavy rainfall in the immediate vicinity
flash flood verb

Examples of flash flood in a Sentence

Recent Examples on the Web
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More than 30 million people from Arizona to Iowa could be at risk for flash floods. — Kerry Breen, CBS News, 29 Sep. 2026 Zion National Park saw near-record flooding along the Virgin River and Heaps Canyon as a flash flood wave moved through on Monday night. — ABC News, 29 Sep. 2026 Houses damaged by flash floods in Betrawati Bazaar, in Nepal's Rasuwa district on Sunday. — Reuters, NBC news, 28 Sep. 2026 Sammy Hadi, chief meteorologist at NWS Miami, said his office has issued a smattering of street flood advisories and flash flood warning in the last week, including a flash flood warning Wednesday morning in Broward. — Alex Harris updated September 23, Miami Herald, 23 Sep. 2026 See All Example Sentences for flash flood

Word History

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of flash flood was in 1940

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Cite this Entry

“Flash flood.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flash%20flood. Accessed 4 Oct. 2026.

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