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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

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

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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

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

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

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...