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 fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

The formation of ice crystals on surfaces when the temperature drops below freezing, typically overnight, causing potential...

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

The term used for turbulence occurring in the absence of clouds or cloud-like elements in the visible area. It is often observed...