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

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

The term 'cloudy' refers to weather conditions characterized by a significant amount of cloud cover in the sky. This may...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

An anvil is a cloud mostly composed of ice particles. Otherwise known as a cumulonimbus cloud, an anvil has reached the stratospheric...

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.