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

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

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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