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What is Precipitation?

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet, and hail.

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Glossary

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

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

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.