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

A periodic warming of sea surface temperatures in the central and eastern Pacific Ocean, significantly influencing global...

A small, intense downdraft that produces damaging winds at the surface, typically lasting a few minutes and often associated...

A cold front is the leading edge of a cold air mass that replaces a warmer air mass. It is typically associated with sudden...

An instrument for measuring atmospheric pressure.

A bomb cyclone is a large mid-latitude storm that forms when a storm’s central pressure drops (i.e. “bombs out”), resulting...

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

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

A cold core high is a high-pressure system with cold air at its center. These systems are typically associated with clear...

Occurs when centers of high pressure and/or low pressure set up over a region in such a way that they prevent other weather...