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 long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

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

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

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

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