Definitions

jet stream

NOUN

upper-atmospheric wind

Synonyms

WEAK

air stream geostrophic wind gradient wind high-altitude wind high-speed wind stream prevailing wind upper-atmosphere wind

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

One important effect is a shift in the jet stream, which influences the paths of storms.

From Science Daily • Jun. 15, 2026

The jet stream also shifts northward, typically pushing winter storms toward the Pacific Northwest and Canada while leaving swaths of California drier than average, especially in the south.

From Los Angeles Times • May 14, 2026

"Just as small shifts in the jet stream can change the weather, small changes in these cellular winds could change how diseases begin or progress," Cathy said.

From Science Daily • Apr. 1, 2026

The jet stream sent areas of low pressure spinning in from the Atlantic, but their progress was blocked by an area of high pressure that became slow-moving across Scandinavia.

From BBC • Feb. 26, 2026

For all of April, the jet stream had been trained on Everest like a fire hose, blasting the summit pyramid with hurricane- force winds.

From "Into Thin Air" by Jon Krakauer