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
South of the Arctic’s polar vortex is the jet stream, a river of west to east air that flows five to nine miles above ground, and helps keep the pole’s cold air confined to the Arctic.
—
Jeffrey Kluger, TIME, 6 Mar. 2025
The jet stream, located high in the earth’s atmosphere, serves as a dividing line between cold northern air and warm tropical weather systems, said John Feerick, a senior meteorologist at AccuWeather.
—Dan Belson, Baltimore Sun, 12 Feb. 2025
How do the polar vortex and the jet stream affect our weather?
—Dinah Voyles Pulver, USA TODAY, 10 Feb. 2025
The storms are being driven by the jet stream, essentially a river of air in the atmosphere that storms flow through.
—Mary Gilbert, CNN, 7 Feb. 2025
See All Example Sentences for jet stream
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.
Jeffrey Kluger, TIME, 6 Mar. 2025
The jet stream, located high in the earth’s atmosphere, serves as a dividing line between cold northern air and warm tropical weather systems, said John Feerick, a senior meteorologist at AccuWeather.
—Dan Belson, Baltimore Sun, 12 Feb. 2025
How do the polar vortex and the jet stream affect our weather?
—Dinah Voyles Pulver, USA TODAY, 10 Feb. 2025
The storms are being driven by the jet stream, essentially a river of air in the atmosphere that storms flow through.
—Mary Gilbert, CNN, 7 Feb. 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 27 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share