Southern Ontario: Fall Weather Hazards Outlook for Saturday, November 27, 2021

Forecast Discussion

A fast-moving system will sweep across Extreme Southwestern Ontario during the afternoon on Saturday and continue through the evening. This will bring the first accumulating snowfall of the season to locations such as Windsor, Sarnia and Chatham. General snowfall accumulation between 4-8cm is possible with locally up to 10cm, but it’s unlikely many areas will see this. The snowfall will taper off just after midnight as the system moves over Upstate New York. Additional snowfall is possible on Sunday with another system which will be covered in Sunday’s outlook if necessary.