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

A type of cloud consisting mostly of small particles such as ice particles.

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

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

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