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

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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

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

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

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