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

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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

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...

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

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

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

Indicates the amount of water the soil can absorb/retain through percolation. This capacity is around 7% in sandy soil and...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...