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 cloud of irregular appearance, composed of irregular cloud fragments.

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 type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

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

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...