Thaw and Rain Expected to Produce Minor Runoff (flood bulletin, Jan 22-24, 2018)
WATERSHED CONDITIONS STATEMENT – WATER SAFETY (Issued January 22, 2018 at 3:50 pm; Valid until: January 24, 2018)
Five to 10 mm of rain has fallen in the Upper Thames River watershed since early this morning. An additional 15 mm is forecast to fall over the rest of today and into the evening. This rain, combined with above freezing temperatures over the past couple days, will cause some runoff. Streams and rivers will rise as a result.
No serious flooding is anticipated at this time. Peak flows are expected to occur starting later Tuesday and into Wednesday. Water levels will remain elevated over the week. Temperatures are forecast to return to below freezing tomorrow, with additional rain and warming forecast on the weekend.
Municipal staff should monitor local drainage problem areas where snow and ice may have covered catch basins. Smaller rural watercourses may have been drifted in by snow which, during a runoff event, can block flows and back up water onto adjacent lands, resulting in localized flooding problems.
Residents are reminded to use extreme caution near all watercourses, and keep children and pets away. Ice is unstable and thin, streambanks are slippery and the water is very cold. Do not go on frozen flood control reservoirs, especially near control structures where operations and flow conditions result in additional hazards.
The UTRCA’s flood control reservoirs at Fanshawe, Wildwood and Pittock Conservation Areas are at seasonal levels. UTRCA officials are monitoring the situation, and will report on any changing conditions if necessary.
Contact: Eleanor Heagy, Communications Specialist