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
The freeze developed as the jet stream dipped sharply south during a strongly negative phase of what's called the Arctic Oscillation.
—
Newsroom Meteorologist, Houston Chronicle, 13 Feb. 2026
As the temperature difference between the Arctic and the areas further south shrinks, the jet stream, which acts as a buffer between them, gets weaker, according to Jennifer Francis of the Woodwell Climate Research Center.
—N'dea Yancey-Bragg, USA Today, 8 Feb. 2026
Downstream, though, a large dip in the jet stream, or trough, has dug its claws in, bringing wave after wave of Arctic air southward, along with conditions that are ideal for forming powerful winter storms.
—Andrew Freedman, CNN Money, 6 Feb. 2026
That wobbling can allow Arctic air from the troposphere — or contained within the polar jet stream — to move elsewhere.
—Brandi D. Addison, Freep.com, 6 Feb. 2026
See All Example Sentences for jet stream
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Newsroom Meteorologist, Houston Chronicle, 13 Feb. 2026
As the temperature difference between the Arctic and the areas further south shrinks, the jet stream, which acts as a buffer between them, gets weaker, according to Jennifer Francis of the Woodwell Climate Research Center.
—N'dea Yancey-Bragg, USA Today, 8 Feb. 2026
Downstream, though, a large dip in the jet stream, or trough, has dug its claws in, bringing wave after wave of Arctic air southward, along with conditions that are ideal for forming powerful winter storms.
—Andrew Freedman, CNN Money, 6 Feb. 2026
That wobbling can allow Arctic air from the troposphere — or contained within the polar jet stream — to move elsewhere.
—Brandi D. Addison, Freep.com, 6 Feb. 2026
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 16 Feb. 2026.
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