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

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

A type of cloud consisting mostly of small particles such as ice particles.

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

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...