Extreme winter weather blankets much of Canada and the U.S.

A powerful winter storm that brought heavy snow and gusts of wind to large swaths of the United States is now hitting southern Ontario and Quebec. Meanwhile, the prairie provinces are experiencing a period of extreme cold that could last several days. #WinterStorm #ExtremeWeather #News Watch The National live on YouTube Sunday-Friday at 9 p.m. ET Subscribe to The National: Connect with The National online: Facebook | Twitter | Instagram | More from CBC News | The National is the flagship of CBC News, showcasing award-winning journalism from across Canada and around the world. Led by Chief Correspondent Adrienne Arsenault and Ian Hanomansing, our team of trusted reporters help you make sense of the world, wherever you are. The National was named Canada’s Bes