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 strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

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

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

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

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

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

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