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

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

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

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

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

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

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

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

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