Dark blue cloudy sky

What is Arctic Air?

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

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Glossary

Snow that rises to 8 feet or higher.

A fixed potential temperature line on adiabats, or the process of thermodynamic changes within a system without any exchange...

A condition in which the stratification of the atmosphere depends on both air temperature and pressure, and where surfaces...

A middle cloud type within the B family in the international cloud classification. These are shaded clouds that can be white...

Cloud condensation nuclei are tiny particles in the atmosphere, such as dust, salt, or pollutants, that provide surfaces...

Weather conditions are the components that comprise the state of the atmosphere. The six main weather conditions are temperature,...

Particles such as pollen, grass seeds, or dust in the air that cause allergies and are transported by winds.

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

An instrument for measuring atmospheric pressure.

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