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 state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

A thick cloud of tiny water droplets suspended in the atmosphere near the Earth's surface, significantly reducing visibility.

A weather warning means that a weather hazard is occurring, imminent, or likely. In other words, severe weather is happening...

An elongated area of relatively low atmospheric pressure, often associated with unsettled weather conditions like storms...

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

A measurement determined by the wave lengths and sea conditions caused by the effect of wind, and by the movement of tree...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

A type of cloud consisting mostly of small particles such as ice particles.