City Crews Preparing for Potential Winter Storm

Dec 3, 2021

With a special weather statement issued by Environment Canada calling for 10 to 25 cm of snow, strong winds and the possibility of freezing rain, City crews are ready for this year’s first major snowfall.

The storm is expected to begin Sunday afternoon.

Weather conditions are closely monitored by municipal staff around-the-clock, seven days-a-week, using a customized weather service, Ontario Ministry of Transportation highway reports, and data generated from local remote weather stations.

Staff regularly patrols municipal roads throughout the city to assess the need for plowing, sanding and salting. A chart outlining when crews are deployed, along with other information on winter operations, can be found at

Please drive according to weather and road conditions and exercise caution around operating plows.

Updates and information on City services during the snowstorm are shared via social media on Twitter (@greatersudbury) and Facebook (

Significant Weather Event Policy
The policy, new last year, defines a Significant Weather Event (SWE) as an approaching or occurring weather hazard with potential to pose a significant danger to users of roads and highways within a municipality.

A SWE means the public can expect enhanced messaging from the City when this declaration is issued by Environment Canada

The City will issue a SWE based on Environment Canada’s weather hazard warnings.

A SWE is not a notice of road or highway closures. The declaration notifies the public to use more caution when travelling on roads, as significant forecasted or occurring weather events may pose delays to crews as they attempt to plow roadways.

In the event of a SWE, the City of Greater Sudbury will notify the public via:

•    City of Greater Sudbury website
•    City of Greater Sudbury social media sites
•    notification to local media outlets