Dark blue cloudy sky

What is Trough?

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

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Glossary

Snow that rises to 8 feet or higher.

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

CONQ is a meteorological abbreviation for significant convection observed in a specific area, often indicating unstable atmospheric...

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

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

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

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

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...