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

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

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