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clear-air turbulence

[ kleer-air ]

noun

  1. atmospheric turbulence, sometimes severe, occurring in air devoid of clouds or other visible indicators that turbulence might be present. : CAT


clear-air turbulence

/ klîrâr /

  1. Atmospheric turbulence that occurs under tranquil and cloudless conditions at high altitudes near jet streams, mountain ranges, and developing storm systems. It subjects aircraft to strong updrafts and downdrafts.
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Word History and Origins

Origin of clear-air turbulence1

First recorded in 1950–55
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Example Sentences

This clear-air turbulence is impossible to see or predict, and yet can cause damage to aircraft and harm those inside.

But clear-air turbulence “is altogether another animal,” according to Doug Moss, a former airline pilot and safety consultant.

Over the past four decades clear-air turbulence has increased by up to 55 percent in various regions around the world.

Severe turbulence is very rare, but clear-air turbulence can come out of the blue, when passengers are not belted in.

From BBC

The brief but severe clear-air turbulence about 90 minutes after takeoff led to the unscheduled landing as a precaution, Lufthansa said in a statement.

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