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

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

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

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

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

The horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

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

Snow that rises to 8 feet or higher.

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