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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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

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

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...