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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
While the high-traffic Everest climbing season is over, Nepal is in the midst of its prime autumn trekking season, even as the country recovers from a devastating monsoon period that included deadly late-August flash floods. — ABC News, 3 Nov. 2026 The weekend’s rain brought flood advisories Saturday night for Ventura, Orange and San Diego counties, but the region emerged relatively unscathed, with no major flash flood or mudslide events reported, according to the National Weather Service. — Blanca Begert, Los Angeles Times, 2 Nov. 2026 Forecasters said flash flood potential and hazardous coastal conditions across east Central Florida are the main concerns heading into the week. — Felix Rodriguez, The Orlando Sentinel, 1 Nov. 2026 And with this year’s ‘super El Nino’ expected to bring flash floods and landslides to Kenya, thousands of workers in Nairobi have been preparing. — John Otis, NPR, 29 Oct. 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

Browse Nearby Words

Cite this Entry

“Flash flood.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flash%20flood. Accessed 6 Nov. 2026.

More from Merriam-Webster on flash flood

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster