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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

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

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

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

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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