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

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

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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

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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.