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 situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

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

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

The branch of science dealing with the laws of motion of air or other gases.

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

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

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

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...