Dark blue cloudy sky

What is Clear Air Turbulance?

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed in jet-stream areas, particularly in the upper troposphere to lower stratosphere. Open-air turbulence can also be seen near mountains and in closed low-pressure centers when there is wind shear.

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Glossary

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

A type of cloud consisting mostly of small particles such as ice particles.

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A very cold high pressure that originates over the Arctic Ocean.