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

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

How the Polar Vortex Can Bring Arctic Blasts to the U.S. Vast weather patterns can carry blasts of frigid air far from the polar regions—here’s how it works ...

Several areas of the country are likely to witness snowy conditions over period of five days, weather maps have suggested.

A major cold blast is in store for more than 30 states as a widespread arctic air outbreak will send nearly every American east of the Rockies into a deep freeze. This will be due to a polar ...

The FOX Forecast Center said a lobe of the polar vortex will dip to the south ... with only South Florida escaping the icy grip of the arctic blast. More than 300 million Americans will experience ...

It's like "bomb cyclone" or "firenado." It seems like the sort of phenomenon that would be responsible for the record-breaking blast of cold, snow and wintry conditions that reached all the way to the ...

The frigid January temperatures resulted in the coldest start to the year in over a decade. A preliminary look at temperature ...

The long-range data shows we may be done with a true Arctic air mass similar to what we experienced in January. But we ...