Northern Ontario: Snowfall Outlook for Sunday, December 19, 2021

Forecast Discussion

A system will slide into Northwestern Ontario from Northern Manitoba during the afternoon on Sunday. This will bring the potential for accumulating snow for those near the Manitoba border and into Far Northern Ontario. Total accumulation of around 6-12cm is possible with localized pockets picking up to 15cm by the end of Sunday. Lake enhancement around the northern shoreline of Lake Superior may also boost totals into the 6-12cm range. The snow will continue into early Monday with the chance of up to 5-10cm of accumulation along the Quebec border and up into Moosonee. It will fully clear out by Monday afternoon as the system moves out over Quebec. Blowing snow may also be an issue at times with wind gusts reaching 20-40km/h late Sunday and continuing overnight.