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

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

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

The formation of fog when warm and moist air passes over a cool or cold surface or, conversely, when cold air passes over...

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

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

A line on a weather map connecting points of equal atmospheric pressure, used to identify high and low-pressure systems.

A weather watch means there is a risk of weather hazards in the near future, which could pose a threat to life/property....

The decrease in temperature with height in an adiabatically rising air parcel (lapse rate). For dry air, this value is 1...

The measure of the water vapor or moisture content in the air, expressed as the mass of water vapor per unit volume of air....

The scientific study of climate, focusing on the analysis of long-term weather patterns and trends over time.