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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

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 prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic...