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

A tropical cyclone with sustained winds of at least 74 miles per hour, characterized by a central eye, strong winds, and...

Frozen drizzle is a dangerous type of frozen rain. It’s a light rain that falls in very fine drops, which freezes on contact...

Thermodynamic changes occurring within a system without any exchange of heat with the surroundings. In the atmosphere, changes...

A very cold high pressure that originates over the Arctic Ocean.

Snow that rises to 8 feet or higher.

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

Although it is also used for light winds, it is the general name given to the daily cyclical winds that occur mostly between...

Coastal flooding occurs when water from the ocean, sea, or large lakes inundates land areas along the coast, usually due...

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...