A winter storm blanketed parts of Ontario and Quebec overnight, prompting school and road closures. Much of southern Ontario and as far east as Montreal are under a yellow alert for snowfall, and areas around Niagara Falls, Toronto and Ottawa are under an orange alert for snowall. »»» Subscribe to CBC News to watch more videos: http://bit.ly/1RreYWS For breaking news, video, audio and in-depth coverage: https://www.cbc.ca/news Follow CBC News on TikTok: https://www.tiktok.com/@cbcnews Subscribe