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

Jet streams are strong, fast-flowing air currents in the upper levels of the atmosphere. They form when warm air masses meet...

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

A storm characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

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

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

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

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

The term used for semi-stationary high-pressure centers such as the Azores and North Pacific Highs, which occur in the narrow...

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...