Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

Plenty of snow is on the way as bitterly cold temperatures spawn snow squalls off the still-unfrozen lakes across Ontario.

This will be due to a polar vortex, an area of strong winds that encircle the Arctic and typically keeps the coldest air locked near the Pole, according to the FOX Forecast Center. This weekend ...

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This will be due to a polar vortex, an area of strong winds that encircle the Arctic and typically keeps the coldest air locked near the Pole, according to the FOX Forecast Center. This weekend and ...

Editor's Note for Sat. Jan. 18: A polar vortex is set to impact much of the US. Click here for the latest update. A polar vortex is forecasted to blanket most of the continental United States in ...

The bitter weather -- tied to an Arctic "polar vortex" blast -- is expected to bring nighttime lows as cold as minus 23 degrees Fahrenheit (minus 31 degrees Celsius) over the weekend for some of ...

It’ll be a memorable cold outbreak as gusty winds make the frigid air dangerously cold in many locations in the coming days The polar vortex will engulf much of North America as we head into ...