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

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

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

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

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

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...