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 towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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

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

Convection is the vertical movement of air caused by temperature differences, where warm air rises and cool air sinks. It...

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

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

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

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...