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

Local winds that blow from slopes to peaks as a result of the heating of the top slopes without being affected by general...

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

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

A type of cloud consisting mostly of small particles such as ice particles.

The trapping of heat in the Earth's atmosphere due to greenhouse gases, such as carbon dioxide and methane, which allows...

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

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

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

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

A term used to identify clouds with a base height below 6,000 feet in the observer's direction. Stratiform clouds consist...