There's a snowfall warning for Northern Ontario due to a Colorado low moving through the lower Great Lakes on Monday.

Up to 25 centimetres of snow is in the forecast for the Sudbury, Sault Ste. Marie and North Bay areas by Tuesday afternoon, when it will begin to taper off.

Blowing snow and a potential for ice pellets mixed in will make for treacherous driving conditions. 

Air Canada is cancelling all departures after 1:30 Monday afternoon and arrivals after 1 pm. You're advised to check your flight status online or call.