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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

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

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

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

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...