Southern Ontario: Snowfall Outlook for Thursday, January 27, 2022

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Forecast Discussion

A weak system is expected to sweep across Southern Ontario throughout the day on Thursday bringing the threat of widespread snowfall. Snow will start during the morning for those further north and it should spread to the southeast throughout the day. However, this system won’t have much moisture associated with it so the general snowfall totals should be kept to a few centimetres across Southern Ontario.

With strong southwesterly winds, lake enhancement will help boost the potential accumulation for those to the northeast of Georgian Bay along with Lake Ontario and Huron. Totals here will range from 2-6cm including Peterborough, Kingston, Grey-Bruce and the Muskoka region with locally up to 10cm.

There are indications that a more organized and intense squall will set up across the Bruce Penisula and into the Parry Sound/North Bay area during the afternoon on Thursday. This squall will have the potential to deliver up to 15cm of snowfall accumulation in localized pockets. We’ve deiced to put this area in the 6-12cm zone instead of the 12-20cm zone because most locations won’t see the 15+cm totals. Pay extra attention to the ‘locally 12 -16cm’ on the legend as some areas will likely see that.

Most of the snow should taper off just after midnight, but some lake effect snow may linger into Friday morning in the typical snowbelt region. We don’t expect much in terms of snowfall accumulation on Friday morning.