Dark blue cloudy sky

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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

An instrument for measuring atmospheric pressure.

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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

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

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