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

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

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

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

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...