With heavy rain in the forecast, area conservation authorities are closely monitoring watershed conditions.
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Weather forecasters are tracking a low-pressure system expected to bring widespread precipitation across the region this weekend.
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Environment Canada issued a special weather statement suggesting rainfall totals of 20 to 40 mm could be seen from late Friday afternoon through Saturday.
As the conditions hit off late Saturday, the rain could change to snow as temperatures drop.
According to the Lower Thames Valley Conservation Authority, the amount of rain could create ponding, areas of standing water and localized flooding.
“This rain will also cause our smaller watercourses to rise, and some could spill (over) their banks into adjacent low-lying areas,” officials said in a release.
“If the higher rainfall amounts appear, the LTVCA may need to operate the McGregor Creek diversion channel at Chatham and is prepared to do so if necessary.”
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Water levels should be expected to remain elevated through the weekend, possibly into early next week.
It is uncertain how the Thames River may respond to these rains, but flooding from the river is not expected at this time, officials said.
As for Sydenham watershed, the St. Clair Region Conservation Authority said the ground is expected to become saturated from the rain, which could contribute to laying and increased run-off into watercourses.
There is also the possibility for increased erosion and seepage issues. Rising water levels may spill into natural floodplain areas, parks and fields.
“With students being off for March Break, parents and guardians are reminded to keep children and pets away from watercourses,” officials added.
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