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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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

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

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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...