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

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

A rapidly rotating column of air extending from a thunderstorm to the ground, capable of causing significant damage.

A towering cloud that often reaches great altitudes and is associated with thunderstorms, heavy rain, and sometimes severe...

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

A strong wind typically ranging from 34 to 40 knots (39 to 46 miles per hour) and often associated with rough seas and stormy...

A tropical cyclone, also called a hurricane, is a severe tropical storm with wind speeds in excess of 74 mph. Known as a...

Anticyclones are areas of high atmospheric pressure that bring hot, dry weather in the summer and cold fronts in the winter.

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

The belt between 50-70 ° N and S latitudes in the Northern and Southern Hemispheres, adjacent to the Polar Region. Although...

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