Dark blue cloudy sky

What is Humidity?

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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Glossary

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

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

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

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

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

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