Meteorology

clear-air turbulence

Turbulence occurring in clear skies, typically at high altitudes near the jet stream, with no visible weather phenomena.

Quick answer: Turbulence occurring in clear skies, typically at high altitudes near the jet stream, with no visible weather phenomena.

This term page is part of the Protermify Aviation glossary and is published as static HTML for fast indexing and clear language coverage.

Languages

Quick answer

Turbulence occurring in clear skies, typically at high altitudes near the jet stream, with no visible weather phenomena.

Why it matters

clear-air turbulence matters because it supports clear communication in Meteorology contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Editorial context

This page is rendered as static HTML from source-backed terminology data so search engines and AI systems can parse the content without client-side code.

Questions and answers

Questions and answers

What is clear-air turbulence?

In this glossary, clear-air turbulence refers to: Turbulence occurring in clear skies, typically at high altitudes near the jet stream, with no visible weather phenomena.

How is clear-air turbulence used in aviation?

In aviation communication, this term appears in contexts such as: "Report clear-air turbulence if encountered at cruising altitude."

Why does clear-air turbulence matter in aviation?

clear-air turbulence matters because it supports clear communication in Meteorology contexts for Pilots, Air Traffic Controllers, and Cabin Crew. It also connects to aviation training and exam language such as ICAO Level 4, ICAO Level 5, ICAO Level 6, and EASA FCL.055.

Who uses clear-air turbulence?

clear-air turbulence is mainly used by Pilots, Air Traffic Controllers, and Cabin Crew.

What category does clear-air turbulence belong to?

In this glossary, clear-air turbulence is grouped under Meteorology. Related pages in this category explain adjacent procedures, commands and operational concepts.

Where does this definition come from?

This definition is sourced from ICAO Doc 9432, FAA PCG and published by Protermify Aviation as a static aviation reference page.

Definition

Turbulence occurring in clear skies, typically at high altitudes near the jet stream, with no visible weather phenomena.

Operational example

Center: Report clear-air turbulence if encountered at cruising altitude.

Definition language

English reference definition

Source

ICAO Doc 9432, FAA PCG

Category

Meteorology

Exam relevance

  • ICAO Level 4
  • ICAO Level 5
  • ICAO Level 6
  • EASA FCL.055

Target audience

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related terms

Use the related links below to continue through connected aviation terminology.

Back to glossary