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

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

A closed low, also known as a cut-off low, is a low-pressure system that is entirely isolated from the main atmospheric circulation...

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...

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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

A cloud that develops from Cirrus, completely or partially covering the sky, creating a halo effect, thin, sheet-like, milky...

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...