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 cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

An instrument for measuring atmospheric pressure.

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

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

Perhaps you have come across them, maybe you are seeing them for the first time. These clouds, known as wave clouds, resemble...

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

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

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

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...