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 formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

A very cold high pressure that originates over the Arctic Ocean.

A deviation from the normal or expected value in atmospheric or climatic conditions, often used in meteorology to identify...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

The jet stream forming the boundary between tropical air and sub-tropical air, characterized by isothermal compression and...

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

An instrument for measuring atmospheric pressure.

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...