What is Polar Vortex?

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs in both the stratosphere and troposphere at high latitudes, close to the poles. It is formed by the rotation of cold, dense air.

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Glossary

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

A cloud of irregular appearance, composed of irregular cloud fragments.

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

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

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

A type of cloud consisting mostly of small particles such as ice particles.

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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

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