A chilling Arctic blast is set to sweep across the US today, with forecasters warning of 'record-breaking' cold weather to follow ... If you can't see the map above, click here.

A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

According to the NWS, the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole, during the winter season. It is ...

Three people have died after a historic snow storm unleashed across approximately 1500 miles of the southern US Tuesday, blanketing large parts of Texas, Louisiana and Florida. The rare storm ...

The coldest air of the season will descend across the U.S. this weekend and early next week, bringing subzero wind chills with it.

"Multiple waves of arctic air continue to gather over northern Canada with eyes for the central and eastern United States in the days ... the National Weather Service warned, before roaring ...