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What is Arctic Air?

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

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Glossary

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...