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.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...