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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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

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

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

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

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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