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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 anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

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

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

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

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