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

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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

A low-pressure area with converging winds, rotating counterclockwise in the Northern Hemisphere and clockwise in the Southern...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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

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