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

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

A continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

An instrument for measuring atmospheric pressure.

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

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

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

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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