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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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

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

A very cold high pressure that originates over the Arctic Ocean.

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...