Parts of southern Ontario could receive snowfall of 20 to 40 centimetres or more by Sunday, Environment Canada warns. The following areas are under a snow squall warning: Newmarket, Georgina, northern York Region, Barrie, Collingwood, Hillsdale, Uxbridge, Beaverton, northern Durham Region and Orillia.
Parts of southern Ontario could see more than 40 cm of snow by Sunday
