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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

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

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...