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 towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

A very cold high pressure that originates over the Arctic Ocean.

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

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

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...