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 horizontal transport of any feature within the atmosphere due to the movement of air (wind). This includes phenomena...

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

The upward movement of air caused by a topographic barrier, such as a mountain, which can lead to cloud formation and precipitation.

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

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

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

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

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

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