A high-speed, meandering wind current, generally moving from a westerly direction at speeds often exceeding 400 kilometers (250 miles) per hour at altitudes of 15 to 25 kilometers (10 to 15 miles). In the Western United States, the jet stream's north-south latitudinal position largely determines the application and intensity of precipitation during the winter months when most rain and snowfall occur.
JET STREAM
Meaning of JET STREAM in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012