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 measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

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

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

Observation of the sky from the observer's location where there are no clouds, and there is no obstruction to visibility....

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

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

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...