Environment Canada issued a fog advisory for Grimsby, Ontario, on Wednesday morning, March 4, 2026. The alert, which was released at 3:05 AM, warns that near-zero visibility will make travel hazardous for residents and commuters throughout the Northern Niagara region.
Weather officials expect the heavy fog to create dangerous conditions on local roads and highways. Visibility is likely to be reduced suddenly in some locations, which may cause problems for people driving during the early morning hours.
Drivers are encouraged to slow down and use their full vehicle lighting system rather than just daytime running lights. It is also important to maintain a safe following distance from other cars to allow for extra braking time in the low visibility.
The fog patches are expected to clear up later in the morning, leading to sunnier conditions for the rest of the day. Residents can monitor changing weather through the WeatherCAN app or by visiting official government weather websites for the latest local information.
