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Meteorologists have also warned that a polar vortex is making its way toward the northern Rocky Mountains and northern Plains in the middle of the countryand is expected to land this weekend.

Meanwhile, the eastern United States was shivering through what the media dubbed “the return of the polar vortex.”

More than 2,000 flights have been cancelled, with about 6,500 delays also reported owing to the extreme weather caused by the polar vortex of icy cold air that usually circles the North Pole.

Forecasters say the extreme weather is being caused by the polar vortex, an area of cold air that circulates around the Arctic.

This sets off a chain reaction of events culminating in the creation of a “polar vortex” with more extreme cold, storminess and snow.