AUDIO: Winter storm closes in on GTA
Environment Canada says the northern edge of a storm in the U.S. will dump 10 centimetres of snow on the Greater Toronto Area.
The snow is expected to begin falling over southwestern Ontario some time after 6:00pm before spreading to eastern Ontario by late evening or overnight.
The agency says areas from Windsor to Niagara and Hamilton, as well as along the St. Lawrence Valley are in the storm's path.
Environment Canada meteorologist Arnold Ashton expects the Hamilton-Burlington region will receive up to 15 centimetres, with the Niagara region getting closer to 20 centimetres.
"Its going to be quite a nasty storm, actually. Its like Mother Nature is giving us a Boxing Day gift," says Ashton.
The snow, combined with winds of up to 60 kilometres an hour will create reduced visibility.
Ashton says the last time a single weather system brought 10 centimetres of snow or more to the GTA was in March 2011.
The director of transportation services in Toronto says the city is ready for the storm.
Peter Noehammer, Director of Transportation Services with the City of Toronto, tells NEWSTALK 1010 his department has been keeping an eye on the forecast.
"We've got our staff and contractors ready to do battle with the storm ... we're ready for whatever comes," he says.
Snow plows will go out on highways after 2 cm of snow falls, on main roads after 5 cm, and on side streets after 8 cm.
Air travellers should also keep the storm in mind. The weather in the U.S. caused 200 flight cancellations at Pearson airport on Christmas Day.
So far on Boxing Day, about 98 flights have been cancelled, mostly departures.
(with files from Justine Lewkowicz and The Canadian Press)