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

A cloud of irregular appearance, composed of irregular cloud fragments.

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

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

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

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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