jet stream

noun

: a long narrow meandering current of high-speed winds near the tropopause blowing from a generally westerly direction and often exceeding a speed of 250 miles (402 kilometers) per hour

Examples of jet stream in a Sentence

Recent Examples on the Web Higher up in the atmosphere, a potent jet stream with intense winds and a pocket of energy will spread over the area from the west. Jeff Halverson, Washington Post, 3 Apr. 2024 But forecasters say the polar jet stream will again drop into Southern California on Monday and could produce 0.10 inches of rain across much of San Diego County, preventing the public from enjoying a partial eclipse of the sun. Gary Robbins, San Diego Union-Tribune, 3 Apr. 2024 The new study did find a correlation between a weaker jet stream and slower heat waves. Delger Erdenesanaa, New York Times, 29 Mar. 2024 The larger part of the cloudiness over Mexico is associated with the subtropical jet stream, which often lies along or atop the eclipse path. Jay Anderson, Discover Magazine, 21 Feb. 2024 Confidence: Medium Still similar Tuesday, but the main dip in the jet stream is approaching and that can enhance the rainfall plus add the potential for strong to severe storms. Ian Livingston, Washington Post, 30 Mar. 2024 The jet stream tied to the low pressure system was slicing over the Mississippi and Ohio valleys and inducing shear, or a change of wind speed and/or direction with height. Naomi Schanen, Washington Post, 14 Mar. 2024 And the cicada’s tiny-but-powerful jet stream of urine might offer new ideas for designing nozzles or soft robots. Sarah Kuta, Smithsonian Magazine, 12 Mar. 2024 The phenomenon typically results in the jet stream being divided into a subtropical and polar jet, rather than being one consolidated stream, said Brent Wachter, meteorologist with Predictive Services Northern California Operations. Alex Wigglesworth, Los Angeles Times, 8 Mar. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'jet stream.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1947, in the meaning defined above

Time Traveler
The first known use of jet stream was in 1947

Dictionary Entries Near jet stream

Cite this Entry

“Jet stream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20stream. Accessed 19 Apr. 2024.

Kids Definition

jet stream

noun
: a long narrow wandering current of high-speed winds blowing from a generally westerly direction several miles above the earth's surface

More from Merriam-Webster on jet stream

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