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

Weather is the day-to-day meteorological conditions that happen in our atmosphere. Weather can change within minutes, which...

The lowest level of a given cloud or cloud layer in the atmosphere, relative to the observer's position above the ground.

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

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

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

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

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

A weather system refers to the movement of warm and cold air across the globe, usually in a recurring pattern. Systems can...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...