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  • Writer's pictureAdvance Weather

STORM WATCH: January 12-13, 2023

Updated: Jan 13, 2023

LAST UPDATE: 12:30 PM, January 12 2023

NEXT UPDATE: 4:00 PM, January 13 2023



Rain has started across the region and will transition to snow later this evening. In Eastern Ontario, freezing rain or drizzle is possible during the transition and may create icy surfaces. Be aware of icy road conditions and slippery conditions on sidewalks.

The snow will continue through the day on Friday before moving out of the area late Friday evening. The heaviest snow will be through the Ottawa Valley with minimal impacts to Southwestern Ontario.

This storm has been rather difficult to forecast due to uncertainties with the exact storm track. Any last minute changes in the atmosphere that alter the track of this storm will significantly impact totals for rain and snow.

Rainfall Outlook

The greatest rainfall totals are expected across Southwestern Ontario, the GTA, and through Eastern Ontario. Rainfall totals will be less through Grey and Bruce counties, as well as further east, closer to Cornwall.

Area Breakdown

10 to 20 mm: Windsor, Leamington, Chatham, London, Brantford, Niagara Falls, Hamilton, Kitchener, Oakville, Toronto, Oshawa, Belleville, Peterborough and Kingston.

5 to 10 mm: Sarnia, Goderich, Stratford, Listowel, Shelburne, Keswick and Brockville.

Trace to 5 mm: Kincardine, Port Elgin, Hanover, Owen Sound, Tobermory, Collingwood, Barrie, Orillia and Bancroft.

Snowfall Outlook

Much less snow is expected in Southwestern Ontario, while Eastern Ontario sees large amounts of snow.

Area Breakdown

30 to 35 cm: Renfrew, Petawawa and Arnprior.

25 to 30 cm: Barry's Bay, Bancroft and Ottawa.

20 to 25 cm: Cornwall, Perth and Whitney.

15 to 20 cm: Brockville, Haliburton and Plevna.

10 to 15 cm: Parry Sound, Huntsville, Bracebridge, Orillia, Newmarket and Peterborough.

5 to 10 cm: Midland, Barrie, Orangeville, Kitchener, Brantford, Hamilton, St. Catharines, Niagara Falls, Toronto, Cobourg, Belleville and Kingston.

Trace to 5 cm: Windsor, Chatham, Sarnia, London, Simcoe, Goderich, Listowel, Kincardine, Owen Sound and Tobermory.

Travel Outlook

For the morning commute on Friday, poor travel conditions are expected through the Ottawa Valley due to falling snow and strong wind gusts. Snow is expected to accumulate quickly. The major highways impacted are expected to be Highways 7, 41, 60, 401, 416 and 417.

From Southwestern Ontario through the GTA and parts of Eastern Ontario, snow is expected in combination with wind gusts near 50 km/h. Visibility may be reduced at times, therefore these areas have been placed under the caution category.

Midwestern Ontario up to Parry Sound will likely see light snow, however little accumulation is expected and wind gusts are expected to be near 30 to 40 km/h in these areas. These areas have been placed under the fair category due to the potential for changing road conditions.

School Bus Cancellations

No data has been published.

Closings and Cancellations

No data has been published.

Road Closures

No data has been published.

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