Northern Ontario: Snowfall Outlook for Monday, December 27, 2021

Forecast Discussion

A system is expected to track through Northern Ontario on Monday with a focus on areas around Lake Superior and the International border. Very limited to no snowfall accumulation is expected in Far Northern Ontario. The snow should begin during the morning hours on Monday along the International border and spread to the east by Monday afternoon. This will continue throughout the day with the potential for some blowing snow in some areas. The worst conditions will be found during the morning and afternoon. It will start to move out as we go into the evening but may linger around just past midnight for those near the Quebec border.

As for accumulation, there is a small area just to the southwest of Thunder Bay consistently showing up in the data with the potential to pick up as much as 30cm of snow. Other areas including Kenora, Fort Frances and Thunder Bay can expect around 10-15cm (maybe locally as much as 20cm especially near Thunder Bay). Northeastern Ontario around Lake Superior and into the Timmins area will see around 6-12cm on Monday with a few additional centimetres possible on Tuesday morning.