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What is Arctic Air?

A mass of very cold, dry air that mostly originates over the Arctic Ocean.

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Glossary

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

The state of the atmosphere when it contains the maximum amount of water vapor possible at a given temperature and pressure.

Nimbostratus clouds are thick, dark, gray clouds associated with rainy and gloomy days that block the Sun. These clouds,...

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

The branch of science dealing with the laws of motion of air or other gases.

A measure of how hot it feels when relative humidity is combined with the actual air temperature, often referred to as the...

A thermodynamic change process in the system without any exchange of heat or transfer of energy between systems. This process...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

A distinct layer in a body of water where the temperature changes rapidly with depth, separating warmer surface water from...

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