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 long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

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

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

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

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

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Bright and dark rays with changing colors and contrast in the sky. These rays become visible due to the reflection of atmospheric...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

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

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