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

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.

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

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

An instrument for measuring atmospheric pressure.

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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

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

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