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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

A large body of air having similar horizontal temperature and moisture characteristics.

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...