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

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

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The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

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

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

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A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...