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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

A very cold high pressure that originates over the Arctic Ocean.

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.