Messy commute, frigid temperatures on horizon for the GTA by News Staff Last Updated Dec 16, 2020 at 5:03 pm EDT The official start of winter is less than a week away and the winter weather is officially settling into the GTA. Tuesday brought lake effect snow to the north that missed the city but areas closer to Lake Ontario will likely be getting hit with a winter blast Wednesday night through early Thursday morning. A winter weather travel advisory has now been cancelled for Toronto but remains in effect for the west GTA. 680 NEWS meteorologist Natasha Ramsahai says it covers southern Halton and Peel regions, as well as the city of Hamilton.