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

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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