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

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

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

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

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

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

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

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

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...