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

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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

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

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A mass of very cold, dry air that mostly originates over the Arctic Ocean.