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

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

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

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....