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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

A type of cloud consisting mostly of small particles such as ice particles.

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

An instrument that continuously records atmospheric pressure over time. It uses a barometer to measure pressure and creates...

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