Weather Science
Jet Stream
Definition
A narrow band of fast-moving air high in the atmosphere that steers weather systems across continents. Dips in the jet stream pull frigid Arctic air south, producing North America's most severe winter outbreaks.
A narrow band of fast-moving air high in the atmosphere that steers weather systems across continents. Dips in the jet stream pull frigid Arctic air south, producing North America's most severe winter outbreaks.