Environment Canada issues Severe Thunderstorm Warning for Halton Hills and Milton: torrential rainfall expected

By Staff

July 23rd, 2023



Conservation Halton advises that approximately 20 to 35 mm of rain has fallen over the past couple hours in the upper reaches of our watershed along Highway 401. Environment Canada has issued a Severe Thunderstorm Warning for Halton Hills and Milton, citing that nickel size hail and torrential rainfall with totals between 50-80 mm is possible.

Widespread flooding is not anticipated, however fast flowing water and flooding of low-lying areas and natural floodplains may be expected.

Conservation Halton is asking all residents and children to keep a safe distance from all watercourses and structures such as bridges, culverts and dams. Elevated water levels, fast flowing water, and slippery conditions along stream banks continue to make these locations extremely dangerous. Please alert children in your care of these imminent dangers. 

Conservation Halton will continue to monitor stream and weather conditions and will issue an update to this Watershed Condition Statement –Water Safety message as conditions warrant.

This Watershed Condition Statement will be in effect through Tuesday July 25, 2023.

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