The concern from Environment Canada currently is the potential for Snow Squalls to develop and come through large parts of Southern Ontario. And so they have ended a Blowing Snow Advisory and put out a Snow Squall Watch.
Lake effect snow squalls possible through Saturday.
Conditions will remain favourable for snow squalls to develop off of Lake Huron into Saturday.
Travel may become hazardous, and motorists are advised to consider changing their travel plans accordingly.
So far it appears that this will be more of an issue for this evening and overnight, though it may become a problem later Today. Best to plan your drives accordingly.