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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

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

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

A large body of air having similar horizontal temperature and moisture characteristics.

A type of low-altitude cloud that forms in uniform layers, often covering the entire sky and producing overcast conditions.

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Any form of water - liquid or solid - that falls from the atmosphere to the Earth's surface, including rain, snow, sleet,...

A weather front formed when a cold front overtakes a warm front, lifting the warm air off the ground and resulting in a mix...

A sudden and rapid flow of snow masses accumulated on the slopes of mountainous areas under the influence of gravity or a...

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

The amount of radiation, heat, or light passing through or flowing from a unit area of a surface.