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

A large, organized thunderstorm with a rotating updraft, often producing severe weather such as tornadoes, hail, and heavy...

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

Ice forms on the surface of highways in a very thin layer that is difficult to distinguish from the color of the asphalt...

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

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

A cold core low is a low-pressure system where the coldest temperatures are found near the center. These systems are often...

A cloud of irregular appearance, composed of irregular cloud fragments.

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

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

An image on the weather radar that is convex to the direction of movement and resembles an arc shape, caused by mesoscale...