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 type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

Snow that rises to 8 feet or higher.

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

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

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

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.