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 lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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

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

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