Jet stream defined: Flow of air dictates our forecast

The jet stream is what separates cold and warm air.

Jet Stream Forecast - Polar Jetstream Tracker Map

What are jet streams and how do they influence the weather we experience?

JetStream National Oceanic and Atmospheric Administration

The Jet Stream Theory

What is the jet stream and how does it affect the weather?

Jet Streams, Explanation, Types, Characteristics, Significance, Diagram

Jet stream, Upper-level winds, Atmospheric circulation, Global weather

7(q) Upper Air Winds and the Jet Streams

Jet streams: Characteristics, Types and Significance - ClearIAS

7(q) Upper Air Winds and the Jet Streams

How does the jet stream affect the climate? - Quora