Dark blue cloudy sky

What is Alto?

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus and altocumulus. These clouds are often associated with changing weather patterns.

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Glossary

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

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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

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

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

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

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