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 measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

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

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

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

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

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

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