From CTV News:
You can't put it off any longer.
You must have winter tires on your car as of midnight Monday.
Expect massive lineups at garages -- and don't be surprised to see a few people jacking up cars in the snow.
The fine for driving without the right rubber is $200 to $300.
Read more ....
My Comment: From what I noticed yesterday .... many cars still do not have their winter tires.