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

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

A prefix used in cloud nomenclature to describe middle-altitude clouds that form between 6,500 and 20,000 feet, such as altostratus...

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

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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...