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What is Absolute Humidity?

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air. It indicates the actual amount of water vapor present, without considering temperature or pressure variations.

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Glossary

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

Snow that rises to 8 feet or higher.

The branch of science dealing with the laws of motion of air or other gases.

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...