Not sure how many here are Canadian, but seems to be quite a lot of snow coming your way.
Heavy amounts of snow will fall over Northern Great Lakes and Southern Ontario Sunday Overnight into Monday, with 20-40 cm (8 – 16 inches) expected for areas around Northern Great Lakes and Southern Ontario. Addition snow may fall due to snow squalls, bringing total snow fall to 50 cm (20 inches) in some regions.
Winds will be strong for all areas near the Great Lakes, with sustained winds at 20-40 km/h, and gusts up to 70-80 km/h.
The system will push into Quebec overnight Monday into Tuesday, and bring 20-35 cm of snow, but snow squalls may continue for Eastern shores of Great Lakes, adding to the snowfall amount.
By Tuesday afternoon, the storm will likely reach Atlantic Canada. New Brunswick, Newfoundland and Labrador, PEI, and Nova Scotia will all receive some snowfall. There is chance of rain mixed for PEI and Nova Scotia. Heaviest snowfall may amount to 35-45 cm.
Maine, USA, may also receive a few flurries as the system moves through.