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Use caution around waterways as Beryl blows through: GRCA

Rainfall across the watershed is expected to be between 50 mm and 60 mm, however some isolated areas could receive over 100 mm
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Post-tropical storm Beryl is forecast to move through the Grand River watershed from late Tuesday, July 9, 2024 through to Thursday, July 11, 2024, bringing significant rainfall.

Remnants of Hurricane Beryl are forecast to merge with an upper trough that is currently over central North America, creating a highly efficient conveyor belt of moisture into southern Ontario. Rainfall across the watershed is forecasted to be from 50 mm to 60 mm. However, there is the possibility of isolated areas receiving over 100 mm of rain.

Water levels and flows are currently at their normal summer levels. The forecasted rain, combined with isolated thunderstorms with high rainfall intensities, can be expected to elevate water levels and produce significant amounts of localized runoff. As a result, low-lying areas, areas with poor drainage and urbanized areas may experience flooding.

GRCA reservoirs

GRCA reservoirs are at their normal operating level for this time of year and will be operated to manage runoff and reduce downstream flooding related to elevated river flows.

Stay safe

The public is encouraged to exercise extreme caution around all local waterways. Banks adjacent to rivers and creeks are very slippery and, when combined with fast-moving water, pose a serious hazard. Children and pets should be kept away from all watercourses.

River conditions and forecasts are being monitored closely. This message will remain in effect until noon on Friday, July 12, 2024. Updated flood messages will be issued if needed.

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