Jet stream
Fast-flowing atmospheric air current / From Wikipedia, the free encyclopedia
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For other uses, see Jet stream (disambiguation).
Not to be confused with Jet (fluid).
Jet streams are fast flowing, narrow, meandering air currents in the atmospheres of the Earth,[1] Venus, Jupiter, Saturn, Uranus, and Neptune.[2] On Earth, the main jet streams are located near the altitude of the tropopause and are westerly winds (flowing west to east). Jet streams may start, stop, split into two or more parts, combine into one stream, or flow in various directions including opposite to the direction of the remainder of the jet.[3]