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 tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A large body of air having similar horizontal temperature and moisture characteristics.

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

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

An instrument for measuring atmospheric pressure.

Snow that rises to 8 feet or higher.

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.