Quick Facts
- Type
- Atmospheric Phenomenon
- Definition
- A narrow band of high-speed winds (typically 80–200+ knots) found near the tr...
- Used By
- Dispatchers, Pilots
Definition#
A jet stream is a narrow, concentrated band of strong winds in the upper troposphere or lower stratosphere, usually flowing from west to east at speeds of 80 to 200+ knots.
Why It Matters Operationally#
Airlines ride jet streams to reduce westbound flight times and fuel burn, while routing around or above them on eastbound flights. CAT is frequently found near jet stream boundaries.
Related Guides#
- Clear Air Turbulence Explained
- Aviation Weather Explained — The Complete Operational Guide
- Air Masses & Fronts in Aviation
- What Is Turbulence?