Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

Cumberland County is now under a winter storm watch.

The term "polar vortex" has gained popularity in recent years, but the phenomenon itself is not new. According to the U.S. National Weather Service, the polar vortex refers to the counterclockwise ...

Each time a whiteout blizzard buries highways or a “Storm of the Century” knocks out power to hundreds of thousands of homes, ...

As a polar vortex latches its icy grip on Eastern Canada this weekend, the southeast parts of the U.S. are getting pummelled ...

The storm is forecast to plow east through the weekend, reaching New York, Washington and other major East Coast cities by ...

The Flow Management team at Vancouver International Airport have to be agile and organized when it comes to dealing with ...

The biggest swings in the jet stream are associated with the most energy. Under the right conditions, that energy can bounce ...

Caption: Northwestern Ontario is facing frigid temperatures this week, with overnight lows dropping to around -30 C in some places. The CBC's Kris Ketonen stopped by Payless Automotive Maintenance and ...

As snow deepens and temperatures dive, the storm is straining power grids, halting transport and creating days of disruption ...

Environment Canada has issued a yellow winter storm watch for Toronto on Sunday, with between 20 and 30 centimetres of snow ...

A powerful winter storm, influenced by a polar vortex, is impacting much of the U.S., bringing heavy snow, ice, and extreme ...