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 heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

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

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

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