Environment Canada has issued a special weather statement for Grimsby, Ontario, noting that significant rainfall on Tuesday, March 10, 2026, could lead to flooding. The region is expected to receive between 20 and 40 millimetres of rain through Wednesday.
Weather officials say even more rain could fall in areas where there are thunderstorms. Because the ground is currently frozen or soaked from previous weather, it cannot absorb the water easily.
This creates a high risk of flash floods and water pooling on local roads and in low-lying spots. Drivers are encouraged to be careful and avoid driving through any roads covered in water.
Residents can help prevent water from backing up by clearing sticks, leaves, or trash away from storm drains near their properties. The Niagara Peninsula Conservation Authority is monitoring local water levels and flood risks across the region.
For more information and the latest updates on the situation, residents can visit Ontario.ca/floods.
