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 anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

A very cold high pressure that originates over the Arctic Ocean.

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

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

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

A body that has the property of absorbing all electromagnetic radiation falling on it, and therefore is the theoretical body...

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

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