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 long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

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

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

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

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

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