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

An instrument for measuring atmospheric pressure.

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

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

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

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

A cloud of irregular appearance, composed of irregular cloud fragments.

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