Dark blue cloudy sky

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

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

Snow that rises to 8 feet or higher.

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

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

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

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...