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

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

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

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

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

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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

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