Less than an inch of snow is expected into Monday. Significant ice build up is possible on Sunday.
A moisture laden low pressure area over the Central Plains States will amble towards the lower Great Lakes this weekend. Some ice pellets may be mixed in at times.More news: Uber Wants to Do it All: Ride-Share, Car-Share, Train Tickets
Power outages and tree damage are likely because of the ice. - Freezing rain should fairly quickly to finish near highway 401, but can last for several hours in regions located further North, especially on high ground. Widespread flooding, power outages and unsafe road conditions are in the future for Southern and Eastern Ontario due to both the freezing rain and strong winds.
A winter weather advisory, the weather service said, "means that periods of snow, sleet or freezing rain will cause travel difficulties". This precipitation will turn to freezing rain by the evening, with a low of -2 C in the forecast. A thin layer of cold air near the surface combined with above freezing temperatures just above it will be enough to generate freezing rain. It may exceed that in some locales.More news: Disney forced into takeover offer for Sky by United Kingdom authority
Wind will come from the northeast at 30 km/h, gusting to 50.
Driving conditions are expected to be unsafe on untreated roads Saturday and Sunday.More news: WMO retires hurricane names Harvey, Irma, Maria, and Nate
The companies say that their first priorities are to respond to known incidents of downed power lines to make the situations safe. Environment Canada warned that people in or near the city should "be on the lookout for adverse weather conditions and take necessary safety precautions".