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...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

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

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