Answer: jetstream
AnswerCrossword Clue
JETSTREAMTropospheric wind current
JETSTREAMBalloonist's propulsion, at times
JETSTREAMHigh, high winds
JETSTREAMCalifornia-to-New York flight aid
JETSTREAMHigh-up air current
JETSTREAMWind system
JETSTREAMTroposphere phenomenon
JETSTREAMBand of high-speed winds
JETSTREAMTropospheric current
JETSTREAMIt's a blast for some balloonists
JETSTREAMHigh-altitude phenomenon
JETSTREAMCalifornia-to-New York flight quickener
JETSTREAMIt's indicated by arrows on a map
JETSTREAMTailwind for eastbound flights
jetstreama narrow belt of high-altitude winds moving east at high speeds and having an important effect on frontogenesis