Dark blue cloudy sky

What is Relative Humidity?

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

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Glossary

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

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

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

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

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...