December 12, 2010 — The Weather Network is tracking a wintry storm that is bringing messy conditions to Ontario and Quebec.
Chris Scott, meteorologist
The weather on Sunday across Ontario and Quebec ranged from wet in Toronto to icy in Gatineau, sloppy in Windsor to a whiteout in North Bay. This storm has discriminated so far, but equality will return Monday as everyone will experience strong winds and the coldest air since last winter.
Most of the Greater Toronto area has escaped the heavy snow from this storm, but will not escape the drastically falling temperatures overnight and bitter wind chills on Monday. There is a possibility for a centimetre or two of snow overnight into Monday morning which could be enough to snarl the commute as temperatures plummet creating slick conditions.
Slippery conditions are highly likely for areas around Windsor, London, and Waterloo where heavy wet snow which partially melted will freeze quickly tonight making for icy conditions on sidewalks and steps on Monday morning. Areas from Ottawa to Montreal will also experience rapidly falling temperatures Monday morning making for slippery conditions.
The heavy snow falling across central Ontario will begin to wind down overnight, but conditions will not improve substantially in communities like North Bay thanks to very strong winds and cold temperatures which will lead to blowing snow on Monday.
And of course, our old reliable snow squalls are on the way, with the most wicked conditions likely along highway 402 near Strathroy and the 401 southwest of London on Monday. This will be a severe snow squall event – travel in western Middlesex and eastern Lambton county will be dangerous. With the forecast wind direction being north-northwest on Monday, London may just avoid the worst of this, but it is likely that the forest city will see some additional snow from lake-effect into Tuesday.
Every major mid-latitude cyclone needs a source of cold air, and also a source of warm air – unfortunately, that warm air won’t be so inviting in the Maritimes with heavy rain across western sections and strong winds for all on Monday.