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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 line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

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

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

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

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...