Dark blue cloudy sky

What is Closed Row (Cut Off Low)?

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation patterns. These systems are surrounded by high-pressure areas and can result in persistent weather conditions such as heavy rain, thunderstorms, or cold temperatures in a localized area.

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Glossary

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A cloud of irregular appearance, composed of irregular cloud fragments.

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

Snow that rises to 8 feet or higher.