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 large body of air having similar horizontal temperature and moisture characteristics.

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

A very cold high pressure that originates over the Arctic Ocean.

A narrow band of strong winds in the upper atmosphere, typically flowing from west to east and influencing weather patterns.

The names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

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

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A mass of very cold, dry air that mostly originates over the Arctic Ocean.