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

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A cloud of irregular appearance, composed of irregular cloud fragments.

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