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 clouds consist of water droplets...

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

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

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

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

An instrument for measuring atmospheric pressure.

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...