Dark blue cloudy sky

What is Circulation?

The large-scale movement of air that distributes heat and moisture around the Earth, influencing weather patterns and climatic conditions.

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Glossary

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

An instrument for measuring atmospheric pressure.

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

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

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

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