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

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

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

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

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

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

The temperature at which air becomes saturated with moisture and water vapor begins to condense into liquid form, leading...

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

A blizzard is a storm that lasts 3 hours or more, with persistent winds/frequent gusts of 35 mph or more along with significant...

An instrument for measuring atmospheric pressure.