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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

Snow that rises to 8 feet or higher.

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A cloud of irregular appearance, composed of irregular cloud fragments.

The branch of science dealing with the laws of motion of air or other gases.

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

A large body of air having similar horizontal temperature and moisture characteristics.

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

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

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