Winter is making a comeback in parts of Ontario this weekend, courtesy of a low pressure system. A drastic drop in temperatures is forecast as a cold front swings through. In some cases, lows into the minus teens are forecast, feeling even colder with the wind chill. The city of Toronto has issued an extreme cold weather alert to help get homeless people into shelters. In northern sections of the province, snow began falling Friday morning. Parts of southern Ontario are expected to get a dusting as well.”We’ll see snow in southern Ontario start to accumulate through the overnight hours,” says Rob Davis, a meteorologist at The Weather Network. “The centre of the low will be over southwestern Ontario, so we could see higher amounts in places like Windsor, London, Kitchener-Waterloo and Hamilton.”Up to 15 cm of snow could fall in those areas through Saturday. Toronto and the Greater Toronto Area are expected to receive 3-5 cm of snow, while the Hamilton and Niagara regions will see 5-10 cm. Still, snow isn’t the only concern.”As the cold front passes, we’re anticipating a flash freeze overnight,” explains Davis. “That could make for some icy driving conditions.” Weather Channel