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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The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.
A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...
The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...