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What is Arctic High?

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

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Glossary

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

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

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.