Drivers going through the Pine Pass can expect heavy snowfall.
Environment Canada issued a warning early Wednesday morning calling for 10 to 15 centimetres of snow to fall, particularly through the morning hours.
"Additionally, strong winds giving blowing snow may further reduce visibility," the agency said.
While the snowfall is expected to taper off to a few flurries in the afternoon, warm air moving into the region could also result in flurries becoming mixed with rain showers at that time.
"Prepare for quickly changing and deteriorating travel conditions. Rapidly accumulating snow could make travel difficult over some locations."