Quick Burst of Snow Across Northern Ontario Early Wednesday Morning With Up to 10–15cm; Possible Big Snowmaker to End off the Week

A fast-moving system is expected to track into Northeastern Ontario overnight Tuesday and into Wednesday bringing the potential for widespread snowfall accumulation in some areas. Snowfall will being to move into the province from Wisconsin and Minnesota sometime around the midnight hours around Lake Superior. The heaviest precipitation appears to stretch from just north of Sault Ste. Marie eastward through the Chapleau and Englehart region.

As mentioned, the system will be moving quite fast for most of the snowfall accumulation will occur during the early morning hours on Wednesday. Although flurries and light snow may linger around throughout the day as the system moves out into Northern Quebec. When it comes to the total accumulation, most areas can expect between 4-8cm south of a line from Kenora to Kapuskasing and north of the Georgian Bay shoreline (where rain will likely be the predominant precipitation type). A zone just north of Elliot Lake and south of Timmins stretching from the eastern Lake Superior shoreline to the Quebec border could see as much as 10-12cm (locally some spots may pick up close to 15cm).

We’re also closely monitoring a potential big snowmaker that could bring the biggest snowfall accumulation for Northern Ontario this season so far. Right now it looks like the heaviest snowfall will occur overnight Thursday and lasting into Friday. Some areas could see as much as 15-25cm but that is subject to change. There’s some uncertainty regarding the track of this system which would affect who sees the most snowfall. Some models have it taking a similar track as the system coming tonight which would put Northeastern Ontario in the bullseye while others have a more westerly track through Thunder Bay and Geraldton. More details in the coming days as we narrow down the track.