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

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

Meteorology is the scientific study of the atmosphere and weather processes. It involves observing, analyzing, and forecasting...

Condensation pressure deficit refers to the difference between the actual vapor pressure and the saturation vapor pressure...

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

A long, narrow region in the atmosphere that transport water vapor, like a river in the sky.

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

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

The mass of air surrounding the earth and bound to it more or less permanently by the earth's gravitational attraction.

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