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

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...

A cloud of irregular appearance, composed of irregular cloud fragments.

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

A polar vortex is a circulating mass of air in the atmosphere, typically found in polar regions. This rotating air mass occurs...

A strong, downward wind caused by a localized column of air sinking rapidly, often resulting in damage similar to that caused...

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

Ball lightning appears during thunderstorms, taking the shape of glowing, electric orbs in the sky. It can appear in a variety...

A periodic cooling of sea surface temperatures in the central and eastern Pacific Ocean, often leading to altered global...

The narrow region between 35-40 ° N and S latitudes in the Northern and Southern Hemispheres, lying between the tropical...