Winter returns.....
A strong winter storm backed by an Arctic boundary is pressing into the St. Lawrence Valley this morning. Snow will begin shortly and spread into Montreal. Up to 10cm of snow may fall before the precipitation changes over to freezing rain. The freezing rain will last for up to 6 hours in Ottawa an Montreal.

A Freezing Rain Warning is in effect for all of Eastern Ontario and Western Quebec.
A Winter Weather Advisory is in effect for St. Lawrence County in New York.

Behind the storm High Winds - with gust up to 100km/h are possible along the Great Lakes and down the St. Lawrence Valley. High Wind Watches have been posted. These will likely be upgraded later today.

Temperatures: They are around -5C now in Kemptville, will slowly rise to above freezing overnight tonight and then plummet Friday to -18C by Friday night.

Out West: Windchill Warnings are in effect across all three Prairie provinces as winds and bitter cold drop readings into the -40C range, the coldest this season.