Results tagged “Polar Vortex”

Desperately cold weather is now gripping the Midwest and Northern Plains of the United States, as well as interior Canada. The culprit is a familiar one: the polar vortex.

The Polar Vortex Grips North America

Blistering cold air from the Arctic plunged southward this winter, breaking U.S. temperature records.

The Polar Vortex Sweeps Into America

The Polar Vortex is a whirling and persistent large area of low pressure, found typically over both north and south poles.

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