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

A rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

Forecasters warn that a split polar vortex is set to bring a 'large supply of cold air' to North America in mid-February as a ...

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

Most of the US will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send temperatures tumbling below freezing for most of the nation starting this ...

Metro Vancouverites may face unseasonably cold weather as February continues thanks to the stratospheric polar vortex.

The vortex is essentially an area of low pressure in the upper layers of the atmosphere over the polar region up north. This ...

Email: [email protected]. Millions of people across the U.S. will experience subzero or below-average temperatures in the coming days as a polar vortex coming from Siberia will usher in a ...

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

As we continue to warm moving into February, it appears latest trends suggest a classic "what goes up, must come down" type ...

The weather flow is gradually changing now and as we head into early February. Our storm systems will come from the west and ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...