The intense cold snap about to settle over most of Canada and the U.S. has been dubbed a “polar vortex’, but Environment Canada Senior Climatologist David Phillips says it could just as easily be called “Arctic air or Siberian air.”

The most unusually cold air in the Northern Hemisphere will be over the United States early next week, bringing dangerously frigid conditions.

The polar vortex will soon elongate over North America with a dangerous cold moving into sections of Canada and the U.S.

The plunging polar vortex brought subfreezing temperatures ... along Texas’ border with Mexico, to 31 degrees, with an expected wind chill factor ranging from 0 to 15 degrees early Wednesday ...

The Arctic polar vortex has been pushing icy winds throughout ... States included parts of Texas, Louisiana, New Mexico, Arizona, Nevada, Utah and Colorado, as well as New Jersey, Pennsylvania ...

(AP) — The plunging polar vortex brought subfreezing temperatures ... along Texas’ border with Mexico, to 31 degrees (minus 0.5 Celsius), with an expected wind chill factor ranging from ...

A major cold blast is in store for millions of Americans as a lobe of a polar vortex will bring brutally cold temperatures to nearly every American east of the Rockies.

Americans face dangerously cold temperatures as a polar vortex brings life-threatening conditions. Nighttime lows may drop to minus 23°F in northern states, with impacts felt across the contiguous US,

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A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans. See maps of the arctic blast.

Parts of Mississippi can expect snow, below-freezing temperatures, lows in the teens next week. Know how to prep your home, family, pets for the cold.