Get ready for a mix of snow, ice pellets and freezing rain this weekend in what Canada's weather agency says could be a "high impact" storm.
Environment Canada blames the wet weather in Southern Ontario on a slow moving system from the Gulf of Mexico that is colliding with Arctic winds.
"Significant icing and gusty winds are expected", the weather service said.
"That's what's going to make it different from the ice storm that we had in 2013", he says.
A total of 2 cm is expected Friday night and 5 to 10 cm Saturday. Freezing rain and ice pellets will likely become widespread again and persist most of Sunday before changing over to rain later in the day.
That said, Environment Canada says this "has the potential to be a major ice storm for some regions with ice accumulations in excess of 20 millimetres possible". Some uncertainty exists as to the time the precipitation switches over to rain on Sunday.More news: Donald Trump Walks Back Eagerness to Rejoin TPP; Demands 'Better Deal'
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Snow or ice pellets will end in the evening then it will be cloudy with blowing snow.
"There remains considerable uncertainty with regards to how long the freezing rain will last before changing over to rain on Sunday", it reads.
The weather agency says the region is expected to get around 25-30 mm of rain over the weekend, which is about half of the month's average rainfall.
Risky winter driving conditions are likely as untreated roads will become snow covered and slippery.
An area of rain and isolated thunderstorms is expected to affect extreme southwestern Ontario.
If you experience an outage or see downed power wires, you can report it by calling 1-800-867-5222.