Dark blue cloudy sky

What is Arctic Air?

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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Glossary

An instrument for measuring atmospheric pressure.

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

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

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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

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