Environment Canada is warning of an extended period of snow expected to hit parts of Ontario this weekend that could bring up to 80 centimeters of snow in some areas. The weather service says people should consider postponing non-essential travel until conditions improve because visibility could drop to near zero due to heavy and natural snow. It says snow is expected to continue through the weekend in several areas of southern Ontario, including Parry Sound-Muskoka, Niagara and Kingston-Prince Edward Counties. The agency says local snowfall amounts will range between 50 and 80 centimeters by late Sunday in the Blue Mountains, northern Gray County and southern Bruce County. The southern Niagara region is expected to see up to 60cm of snow this weekend, while other areas such as Barrie and Orillia could see up to 25cm of snow by Saturday morning and an additional 25cm by Saturday night . Environment Canada is also warning of possible rainfall for parts of northern Ontario, including North Bay and West Nipissing, where up to 20 centimeters of snow could fall this weekend. This report by The Canadian Press was first published on November 18, 2022.