By: Matt Weigarden, Local Journalism Initiative Reporter, Tilbury Times Reporter
The Lower Thames Valley Conservation Authority has issued a flood outlook as warm temperatures, melting snow and significant rainfall are expected to push water levels higher across the region this week.
The advisory, released Monday afternoon, warns that 15 to 35 millimetres of rain forecast from late Tuesday through Wednesday, combined with above‑freezing temperatures, will lead to rapid snowmelt and increased runoff throughout the watershed.
Officials say residents should expect ponding, standing water and localized flooding, particularly in areas where snow and ice continue to block drainage ditches and smaller watercourses. Some smaller waterways may rise enough to spill into nearby low‑lying areas. The authority says it expects to operate the McGregor Creek Diversion Channel in Chatham.
The Thames River is also expected to rise. Forecasts indicate the river will likely flood low‑lying flats from Delaware to Thamesville, and water is expected to cover the downtown Chatham riverside sidewalk. Elevated water levels could continue into early next week.
The authority says the river remains covered in significant ice — roughly 30 centimetres near Lighthouse Cove and 20 centimetres upstream toward Chatham — and with Lake St. Clair still frozen, conditions are favourable for an ice jam once the river ice begins to move. Ice jams can cause water levels to rise quickly and unpredictably.
Officials say the timing of ice breakup is uncertain, but note that past ice‑jam events have pushed water levels back into Chatham high enough to require operation of the 6th Street Dam. The situation will be monitored closely in the coming days.
Residents are urged to stay away from rivers, streams and drainage ditches, as rising water and unstable ice create hazardous conditions. The authority warns against entering flooded areas or driving through water‑covered roads, and advises keeping children, pets and livestock away from waterways.
The flood outlook remains in effect until Feb. 19.
