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
If Humberto drifts east and the jet stream’s influence dominates, the future Imelda could be drawn into the Southeast coast.
—
Chris Dolce, CNN Money, 25 Sep. 2025
The National Weather Service said many times during winter in the northern hemisphere, the polar vortex will expand, sending cold air southward with the jet stream.
—Jade Jackson, IndyStar, 25 Sep. 2025
How much cold actually reaches Tennessee or other parts of the country depends on other atmospheric patterns, like the jet stream and storm systems.
—Brandi D. Addison, Nashville Tennessean, 24 Sep. 2025
In the East, the northern branch of the jet stream tends to carry faster-moving, less intense storms, which can mean snowfall near or even below average, with temperatures closer to seasonal norms, AccuWeather said.
—Doyle Rice, USA Today, 16 Sep. 2025
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Chris Dolce, CNN Money, 25 Sep. 2025
The National Weather Service said many times during winter in the northern hemisphere, the polar vortex will expand, sending cold air southward with the jet stream.
—Jade Jackson, IndyStar, 25 Sep. 2025
How much cold actually reaches Tennessee or other parts of the country depends on other atmospheric patterns, like the jet stream and storm systems.
—Brandi D. Addison, Nashville Tennessean, 24 Sep. 2025
In the East, the northern branch of the jet stream tends to carry faster-moving, less intense storms, which can mean snowfall near or even below average, with temperatures closer to seasonal norms, AccuWeather said.
—Doyle Rice, USA Today, 16 Sep. 2025
See All Example Sentences for jet stream
Cite this Entry
“Jet stream.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/jet%20stream. Accessed 2 Oct. 2025.
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