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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

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

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

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 large body of air having similar horizontal temperature and moisture characteristics.

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

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...