Warmer, moist air surging northeastward this weekend from the southern United States will overrun the cold air at the surface over southern Ontario Sunday night and the result will be a widespread wintry mix.
Right now, looks like an initial band of snow will spread northeastward across southwestern Ontario Sunday evening before changing to sleet and freezing rain from southwest to northeast Sunday night.
Freezing precipitation should change to plain rain in the Windsor area and along the Lake Erie region Monday morning.
In the GTA, expect an initial band of snow Sunday night and early Monday morning followed by sleet and freezing rain by Monday midday or afternoon.
Areas just north, northwest and northeast of Toronto could be in for a prolonged period of freezing rain through Monday evening.
I will have more details later.
Second charge of Arctic air......
There will be a second surge of Arctic air coming down from the far north next week. Looks like the core of this cold will once again focus east of the Continental Divide. Cold should be fairly widespread across the eastern two-thirds of Canada during the first week of February. Ski areas should be able to make plenty of snow!
Update on White Christmas probabilities for Canada
Update on the long-range forecast model data.
A look a the storm systems that could impact Christmas Eve and Christmas Day in Canada.
What are your current chances for a white Christmas?
Here is our latest storm snowfall forecast map for Quebec and New Brunswick.
Storms will target the East and the West once again this week.