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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

Snow that rises to 8 feet or higher.

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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...