The St. Clair Region Conservation Authority says the risk of thunderstorms over the next two days may bring high-intensity rainfall causing ponding and increased runoff.
The Conservation Authority issued a flood outlook statement on Tuesday night, warning of the potential for elevated water levels if the forecast from Environment Canada proves correct.
The national weather service says beginning late Tuesday evening and into Wednesday morning, isolated thunderstorms are possible. The severity of possible thunderstorms increases through the day, and may produce heavy rainfall, high winds, hail, or a tornado.
Environment Canada says Wednesday rainfall up to 60mm is possible and at a rate of up to 50mm per hour.
The risk of thunderstorms continues into Thursday, with scattered thunderstorms possible that could bring up to 25mm of rain and at a rate of up to 15mm per hour.
According to SCRCA, if the upper ranges of the forecast are realized, total rainfall could be 90mm to 110mm over the next two days.
Individuals are reminded to avoid watercourses and flooded areas due to dangerous conditions, slippery banks, and cold, swift moving water. Children and pets should be kept away from the water.
The Conservation Authority continues to monitor watershed conditions and will issue advisories to municipalities and media should flood issues arise.
The statement will remain in effect until 12 p.m. on Friday, unless otherwise updated.