bomb cyclone

noun

plural bomb cyclones
meteorology
: a powerful, rapidly intensifying storm associated with a sudden and significant drop in atmospheric pressure
Tens of thousands of utility workers were working over the weekend after the muscular storm—known as a "bomb cyclone" for its rapid pressure drop—battered neighborhoods from Virginia to Maine.Rick Jervis
As incoming air rises around the center of the storm, it gets carried off by the jet stream and that increases the speed of the incoming air. The faster the air moves, the faster the barometric pressure drops. In a really severe nor'easter, the pressure can drop 24 millibars in 24 hours. This is known as a "bomb cyclone."Clay Thompson
compare bombogenesis

Examples of bomb cyclone in a Sentence

Recent Examples on the Web
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Snowfall and wind gusts are forecast to be strongest in North Carolina, where forecasters have warned a bomb cyclone will cause dangerous conditions. Eduardo Cuevas, USA Today, 31 Jan. 2026 The storm may develop into a bomb cyclone—the term for a weather event in which atmospheric pressure drops sharply over a short period, causing high winds and snow. Rebecca Schneid, Time, 31 Jan. 2026 At the same time, a powerful bomb cyclone is expected to bring heavy snow, hurricane-force winds and coastal flooding to the Southeast. Alexandra Banner, CNN Money, 30 Jan. 2026 It is popularly referred to as a bomb cyclone. Rick Sobey, Boston Herald, 30 Jan. 2026 See All Example Sentences for bomb cyclone

Word History

First Known Use

1987, in the meaning defined above

Time Traveler
The first known use of bomb cyclone was in 1987

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Cite this Entry

“Bomb cyclone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bomb%20cyclone. Accessed 15 Feb. 2026.

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