Environment Canada issued a special weather statement for Cornwall, Ontario, on March 20, 2026, warning residents to prepare for heavy snow. This type of alert is used to tell the community about unusual weather that might cause problems. The agency expects between 5 to 10 cm of snow to fall starting in the early morning and continuing through the early afternoon.
The snow is expected to fall quickly at times, with rates reaching 2 to 3 cm per hour during the peak of the storm. This rapid buildup will likely make it difficult for people to walk or drive on local streets and sidewalks throughout the day.
According to Environment Canada, the snowfall is timed to impact the morning rush hour. Residents are advised to stay cautious while traveling and to keep an eye on the weather forecast as conditions change.