By Rianna Lim Heavy snow hammered much of southern Ontario and parts of Quebec on Thursday, shuttering schools and causing commuter chaos throughout the day. Environment Canada said some parts of Ontario, including the Greater Toronto Area, could see up to 40 centimetres of snow by Thursday evening, even as snowfall warnings for Toronto, Hamilton and Kitchener were lifted by the late afternoon. Earlier in the day, the weather agency had issued orange alerts – reserved for weather that’s likely to cause significant disruption or damage – in several regions. Toronto, York, Peel and Halton Region schools closed Thursday morning, and post-secondary schools including the University of Toronto, Toronto Metropolitan University and York University announced their campuses were closed. Environment Canada said the Ottawa area would also see up to…







