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  1. Clear-air turbulence - Wikipedia

    In meteorology, clear-air turbulence (CAT) is the turbulent movement of air masses in the absence of any visual clues, such as clouds, and is caused when bodies of air moving at widely different speeds …

  2. Clear Air Turbulence: How It Happens and How to Handle It

    May 26, 2025 · Clear Air Turbulence (CAT) is an invisible high-altitude hazard. Learn its causes, occurrence, and how pilots manage it.

  3. Turbulence - National Weather Service

    Clear air turbulence is turbulence not associated with cumuliform clouds, including thunderstorms, occurring at or above 15,000 feet. Clear air turbulence is not restricted to cloud-free air (75% of all …

  4. Clear-air turbulence (CAT) | Britannica

    Clear-air turbulence (CAT), erratic air currents that occur in cloudless air between altitudes of 6,000 and 15,000 metres (20,000 and 49,000 feet) and constitute a hazard to aircraft.

  5. What is clear-air turbulence? What to know about the "very violent ...

    May 22, 2024 · Clear-air turbulence is a "typically very violent" phenomenon that occurs at high altitudes, typically between 23,000 to 39,000 feet above sea level, said Hassan Shahidi, president and CEO of...

  6. Clear Air Turbulence | NAV CANADA Aviation Meteorology Reference

    Clear air turbulence has significant impacts across various roles in aviation. Learn about them along with a complete example of an event over Southern Quebec.

  7. Clear Air Turbulence (CAT) - SKYbrary Aviation Safety

    Clear Air Turbulence (CAT) is defined by the International Civil Aviation Organisation (ICAO) as turbulence generated in clear air, in regions without clouds, which is invisible to the pilot.

  8. What You Need To Know About Clear Air Turbulence - Forbes

    May 24, 2024 · The turbulent air can cause airplanes to lose altitude unexpectedly. Clear air turbulence is when erratic air currents occur in cloudless air between altitudes of 20,000 and 49,000 feet.

  9. What is Clear Air Turbulence? - Flightradar24 Blog

    Oct 12, 2023 · Clear air turbulence is an atmospheric phenomenon that typically occurs at high altitudes where clear skies and more serene conditions prevail. Unlike the turbulence associated with …

  10. Clear-air turbulence: Why is it so dangerous? - Fast Company

    May 22, 2024 · Clear-air turbulence happens most often in or near the high-altitude rivers of air called jet streams. The culprit is wind shear, which is when two huge air masses close to each other move at...