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 continental air mass is a large body of air that forms over land, characterized by dry conditions due to the lack of moisture...

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...

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...