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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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

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

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

An instrument for measuring atmospheric pressure.

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...