Environment Canada has issued a freezing rain warning for a good portion of southwestern Ontario including London, Kitchener and Guelph.
The affected area stretches from Wiarton and Caledon to Oxford County and also includes Dufferin, Grey, Perth and Middlesex counties.
The warning calls for the area to see freezing rain on Tuesday afternoon which could see ice build-up of up to 4 mm.
“Although freezing rain is expected to be brief and limited during the afternoon, an earlier onset could lead to greater ice build-up,” the warning says.
“Surface temperatures are expected to rise above the freezing mark through the afternoon into the evening limiting freezing rain throughout the day.”
The agency warns to be prepared for challenging driving conditions and that utility outages may also occur as a result of the freezing rain.