As Environment Canada warns residents in southern Ontario of a "potentially historic ice storm" this weekend, a number of closures are in place and officials are taking precautions.
Environment Canada has issued a special weather statement for Sarnia-Lambton, London-Middlesex, Elgin County, and Oxford County advising of a slow-moving weather system that is expected to a significant risk of freezing rain Saturday afternoon. Power outages and tree damage are "likely" due to the winds and ice, and travel will be hard at times due to ice-covered surfaces and downed tree limbs and power lines.
An ice storm sweeping through southern Ontario could down power lines, delay flights and lead to risky driving conditions.
Freezing rain is also expected overnight into Sunday before changing back to heavy rain as temperatures rise above 0. Freezing rain may become mixed with or turn over to ice pellets at times, with some areas receiving a few centimetres of the ice pellet mess.
A powerful low will move across the Great Lakes, whipping up strong winds and heavy rain for most of southern lower MI through the day Saturday.
The ice accumulations (a quarter-inch or more possible in mid-Michigan) and strong winds may create numerous power outages.
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"However, freezing rain will likely become widespread again".
Snow or ice pellets will end in the evening then it will be cloudy with blowing snow.
Environment Canada said travel could become hard on Sunday and Monday due to snow and freezing rain.
Watch for quickly changing road conditions from wet to icy this afternoon and evening.
Hydro One said it has crews ready to respond to outages 24/7, and additional resources are on standby this weekend.