So where do you claim the smoke is coming from? Not Nova Scotia or Quebec?
Wait. Are you claiming Wednesdays smoke map was incorrect?
Anyway, from Wednesday's smoke map, the smoke looks like it crossed the border near Watertown and headed south. East of there, the smoke map shows no smoke for the three cities that you mentioned. Add to that, those three cities reported no smoke. Add to that, the Wednesday weather map showed a low pressure system over Eastern Canada. Such a setup, if you know anything about weather systems supports an air flow that circles counter clockwise around that low pressure system. The smoke map makes sense.
Again, are you claiming Wednesdays smoke map was incorrect?