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

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

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

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

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

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

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

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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

A scale for estimating wind speed based on observed conditions of the sea or land. It ranges from 0 (calm) to 12 (hurricane)...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.