“An intense winter storm over Lake Superior will continue to move north towards Eastern Hudson Bay today,” Environment Canada said in a release Friday.
A Colorado Low and Alberta Clipper are combining over the Great Lakes to create problems across southern and Northern Ontario. That's expected to bring unsettled weather all weekend.
Freezing rain currently falling across the regions will change to rain or wet snow this morning and then back to flurries later this morning or this afternoon.
All school buses in Sudbury have been cancelled, although schools remain open today.
The weather conditions could result in extremely icy roads across the city, Greater Sudbury Police Service said in a release early Friday.
“Motorists are reminded to take their time, leave plenty of room between themselves and other vehicles and to drive with extra care.”
About 5 cm of snow is expected to fall today, with temperatures dropping to -4 C. Wind gusts of 40 km/h will continue today and tonight. Another 4 cm of snow is expected to fall by Saturday morning. Highs on Saturday will be -10.
Environment Canada warns that untreated surfaces may quickly become icy and slippery as the freezing rain moves in.
Temperatures will plunge early next week, with highs of -17 Monday and -20 on Tuesday.