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What is Air Mass?

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

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Glossary

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

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

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

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

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

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