Thunder Bay downpour breaks 114-year rainfall record, multiple events cancelled

This Wednesday, July 23, Thunder Bay experienced a historic torrential rainstorm. This sudden heavy rainfall not only broke the single-day rainfall record of the past 114 years, but also led to the temporary cancellation of the Thunder City Speedway racing event originally scheduled for that day, with multiple areas of the city affected to varying degrees.

According to meteorological data from Environment Canada, the cumulative rainfall in Thunder Bay within 24 hours that day reached as high as 56.5 mm, far exceeding the old record of 29 mm set on July 23, 1911, making it the highest rainfall record for that date in history. At the same time, the rainfall also affected nearby areas, with Pukaskwa National Park south of Marathon receiving 70 to 90 mm of rain.

Melissa Hughson, water resources manager at the Lakehead Region Conservation Authority (LRCA), said that over the past two days, rainfall in the nine river channels monitored by the agency ranged from 48 to 93 mm, with the Corbett Creek watershed being the hardest hit and the Slate River area relatively mild. Although river levels and flow rates have risen significantly, they are still within safe limits, and no flood warning has been issued. However, relevant departments still remind citizens to remain vigilant and be prepared for flood prevention.

Due to this severe weather, the Richard Shutte "Double Deuce" Tribute Night racing memorial event originally planned by Thunder City Speedway for that evening was also forced to be temporarily cancelled. The event organizers announced via social media a few hours before the event that, due to the obvious thunderstorm risk forecast from afternoon to evening, and to ensure the safety of drivers and spectators, the event would be postponed to the following day.

Alexandra Cournoyer, a meteorologist at Environment Canada, said that the rainfall system moved relatively quickly, and the weather began to improve from Thursday. Over the next few days, the Thunder Bay area will be mainly sunny to partly cloudy, with temperatures gradually rising to 26 to 27 degrees Celsius. However, the expert also pointed out that there may still be localized showers this weekend, and advised citizens to continue to pay attention to weather changes and be prepared.

Relevant municipal departments remind residents that this extreme rainfall highlights the importance of urban drainage facilities. It is recommended that citizens inspect and maintain their own drainage ditches and stormwater pipes in the coming days to prevent water accumulation risks from similar heavy rains and ensure the safety of life and property.