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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

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

An instrument for measuring atmospheric pressure.

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

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

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

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