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

Snow that rises to 8 feet or higher.

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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