Dark blue cloudy sky

What is Saturation?

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

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Glossary

Snow that rises to 8 feet or higher.

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

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

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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