Flood Watch: Forecast rain may cause localized flooding in some areas (flood bulletin, May 4-8, 2017)

Flood Watch (Issued May 4, 2017 at 2:30 pm; Valid until May 8, 2017)

With the ground already saturated from previous rain events over the past days and weeks, watercourses in the Upper Thames River watershed will respond quickly to the rain that is forecast to fall today through Saturday. Forecasts vary in their severity, with some 48 hour totals in the low 30 millimetre range, and one as high as 110 mm. The average forecast is for 60-70 mm to fall by Saturday morning.

Watercourses are still elevated in response to this rain earlier this week. The severity of flooding will depend on rainfall totals received, with results ranging from similar water levels to those experienced earlier this week, to flooding of low-lying areas such as parks in London and locations that typically flood during spring runoff. Road closures may be possible (e.g., Highway 2 in Woodstock, Windermere Avenue in London, parking areas on Western University campus), should the higher forecasts be correct.

Flood coordinators should review their flood contingency plans and be on the alert over the weekend. These messages will be updated as further information becomes available.

Residents are reminded to use extreme caution near all watercourses, stay out of any flooded areas, and to keep children and pets away. Streambanks are slippery and the water is cold and moving quickly.

The UTRCA’s flood control reservoirs at Fanshawe, Wildwood and Pittock Conservation Areas are at seasonal levels, and are being operated to reduce downstream flows.

UTRCA officials are monitoring the situation, and will report on any changing conditions if necessary.

See Thames River water levels

Contact: Eleanor Heagy, Communications Specialist

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