Environment Canada says areas between Sarnia and Kingston could see a significant amount of snowfall on Sunday.
Kitchener, Waterloo, Cambridge, Stratford, Guelph and Brantford could get between 10 and 20 centimetres of snow, while Windsor, Chatham-Kent and Sarnia may see up to 25 centimetres.
The snow is expected to peak by 6 p.m. and continue through the night.
Areas closer to Lake Ontario, including Hamilton and Niagara, could see that snow change into rain by Monday morning.
“Overnight temperatures will warm up a little bit and we may see some of that snow turn into rain,” says Dave Phillips, senior climatologist for Environment Canada.“A little bit messy tomorrow for the commute and then following that we’ll get back into some cold air.”
Drivers are being warned that visibility may be reduced due to heavy, blowing snow.
Emergency crews have already been called to a number of crashes due to slippery roads.
“Most of the crashes that we’ve investigated today have been on the off-ramps and exits,” says OPP Staff Sgt. Kerry Schmidt. “Where drivers just come up the curve and they’re going far too fast.”
Both Kitchener and Waterloo have declared snow events to allow plows and salters to clear city streets. Cars parked overnight could be ticketed and towed. The snow event will remain in effect until midnight Monday.
With reporting by Nadia Matos