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

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

The occurrence of storms resulting from the horizontal advection of cold air at high levels or the horizontal advection of...

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

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

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

A middle cloud type within the B family in the international cloud classification. These clouds consist of water droplets...

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

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

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

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