By: Matt Weingarden, Local Journalism Initiative Reporter, Tilbury Times Reporter
Heavy rainfall over the past 36 hours has led to water levels rising in the Lower Thames watershed. Rainfall totals of 40 to 55 mm have caused smaller watercourses to spill their banks, resulting in localized flooding and ponding in low-lying areas. Current forecasts suggest up to an additional 10 mm of rain may fall tomorrow, which could maintain elevated water levels.
Most smaller watercourses, including ditches and streams, have already peaked and are beginning to recede. However, water levels will drop slowly due to the significant rainfall. Additional rainfall tomorrow could prolong high water conditions. The McGregor Creek Diversion Channel in Chatham is currently in operation to manage excess water flow.
The Thames River is rising due to runoff from the recent rain. Water levels are expected to peak later today in upstream areas and will progress downstream throughout the week. Additional contributions from local tributaries may cause levels to rise further. The lower Thames River is anticipated to experience slightly higher water levels compared to mid-December’s event. Low-lying areas from Delaware to Chatham, including riverside sidewalks in downstream Chatham, are expected to flood, although significant flooding is not forecasted.
Residents are urged to exercise caution around waterways. Slippery banks and cold, fast-moving water pose a significant safety risk. Standing water can also conceal hazards. Children and pets should be kept away from all watercourses, ditches, and streams.
LTVCA officials will continue to monitor water levels and provide updates as necessary. This advisory remains in effect until January 3, 2025.
For real-time updates and safety advisories, follow the Lower Thames Valley Conservation Authority on social media or visit their website.

