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

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

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

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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

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

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

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