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

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

The polar vortex that brought snow and arctic temperatures to Washington ... you and I fought side by side against the most ...

Temperatures are expected to drop throughout southern Ontario, including Waterloo region, Guelph and Wellington County, throughout the day Saturday as a polar vortex moves down into the area.

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 ...

Montreal shelters, already filled to capacity, are preparing for the upcoming cold snap expected to hit southern Quebec in the coming days. In Montreal, highs are expected to reach –15 C, with ...

The weather spell is being referred to as a polar vortex, but Mahdavi said that's a bit of a misnomer for what's happening: the term "polar vortex" describes a massive cyclone of air that is ...

A polar vortex that will bring in extremely and dangerously cold temperatures and wind chills to the metro St. Louis area starting Sunday and into Wednesday. By Monday morning some overnight lows ...

Global News meteorologist Anthony Farnell said the chilly temperatures, caused by a polar vortex spinning across Canada, will “overwhelm” and will start this weekend and carry into next week.

A polar vortex is a large area of low pressure and cold air surrounding both of the Earth’s poles, according to the National Weather Service. It weakens in summer and strengthens in winter.

These conditions are all thanks to a familiar sounding occurrence: the polar vortex, a large area of low pressure and cold air that surrounds the Earth's poles. The "vortex" is the ...