Dark blue cloudy sky

What is Mesocyclone?

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with a funnel cloud or tornado cloud beneath it and detectable on Doppler radar.

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Glossary

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

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

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

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

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

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

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...