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 amount of water vapor present in the air, which can affect comfort levels and weather conditions.

Precipitation in the form of small balls or lumps of ice that form in thunderstorm updrafts and fall to the ground.

A weather front where two air masses meet but neither is strong enough to move the other, often resulting in prolonged periods...

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

The situation where there is no advection because the constant pressure surfaces and temperature surfaces in the atmosphere...

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

A line of severe thunderstorms that can form along or ahead of a cold front, often producing strong winds and heavy rain.

In a severe storm, with a swirling motion in its left rear quadrant, a vertically rotating column of air, often seen with...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

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