polar vortexes

Cold air masses

Polar vortexes are large-scale weather patterns of cold air that circulate around the Arctic and Antarctic poles.

When the Arctic polar vortex weakens, frigid air can spill southward into normally temperate regions, causing severe cold snaps: The polar vortex brought record low temperatures to the Midwest.

The term entered mainstream vocabulary during extreme winter weather events in the 2010s.

Also spelled polar vortices.

Related

freezing temperatures · stratospheric · blizzard · jet stream · arctic blast · cyclones · upper atmosphere · Coriolis effect · snowstorms · climatology · climate change · ice storms · meteorology · weather modeling · air masses · atmospheric turbulence · ices · tropospheres

Opposites
geographic origin/thermal character

polar vortexesheat waves

Sustained extreme high temperatures

tropical heat · hot spells · tropical storms · warm fronts · desert heat

seasonal association

polar vortexesIndian summer

Autumn warm spell

Indian summers

geographic origin

polar vortexestropical storms

Organized warm-ocean weather systems

tropical cyclones · hurricanes · typhoons · monsoons · tropical depressions

Family

polar, vortex, pole, poles, polarity, polarize, polarized, polarizing, polarization

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