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

The branch of science dealing with the laws of motion of air or other gases.

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A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...

Large, fluffy white clouds with flat bases, typically indicating fair weather, though they can develop into storm clouds...

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

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Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....