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

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A thin, white cloud layer that is intertwined or separate, arranged in regular order, and does not cast a shadow.

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

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

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...