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

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

The amount of water vapor present in the air, which can affect comfort levels and weather conditions.

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

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 names given to the winds blowing from the four cardinal directions (north, east, south, and west - N, E, S, W) on a compass.

An instrument used to measure the speed, force, and sometimes the direction of the wind. It can be cup or pressure tube anemometers....