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

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

A cloud of irregular appearance, composed of irregular cloud fragments.

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

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

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

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...