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

The branch of science dealing with the laws of motion of air or other gases.

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

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

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...