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

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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

Weather intelligence is technology that provides predictive and actionable insights, allowing businesses to adapt to weather-related...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...