Southern Ontario: Fall Weather Hazards Outlook for Saturday, November 13, 2021

Forecast Discussion

After a brief period of mild weather across Southern Ontario the past week that brought double-digit temperatures, winter will make its return this weekend. This will begin with some lake effect flurries around Lake Huron and Georgian Bay along with northeast of Lake Erie into the Niagara region. The flurries will begin early Saturday morning and continue throughout the day. More snow is expected late Sunday into Monday as a system brings what could be the season’s first widespread snowfall for Southern Ontario. Accumulation on Saturday is expected to be fairly minor with most areas just seeing a dusting of snow if anything at all. A few locations may pick up close to 5cm or locally more should a strong snow streamer gets organized enough. Due to the nature of lake effect snow, you should be prepared for a rapid reduction in visibility so be sure to drive according to the conditions.