Dark blue cloudy sky

What is Atmospheric River?

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

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Glossary

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

The process by which a solid changes directly into a gas without first becoming a liquid, such as ice turning into water...

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

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

Air laden with sand and dust, common in areas devoid of permanent vegetation, especially deserts.

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

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

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

The reflectance rate of a surface, indicating the amount of electromagnetic radiation reflected from the surface. It depends...

A sudden electrostatic discharge during a thunderstorm between electrically charged regions of a cloud, between clouds, or...