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

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

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Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

Snow that rises to 8 feet or higher.

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The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...