The Grand River Conservation Authority has issued a High Lake Level Warning. This warning is in addition to the previously issued Watershed Conditions Statement. While some uncertainty remains in the height of the Lake Erie surge, forecasts indicate a risk for flooding along the Lake Erie shoreline and Grand River downstream of Dunnville Dam. Waves of up to 1.6 m are expected to accompany this surge event.
Strong south-west winds, gusting up to 100 km/h, overnight Saturday and into Sunday morning, beginning to ease near noon. A rainfall warning is also in effect with rain, heavy at times, continuing overnight. Total rainfall amounts of 40 to 60 mm or more are possible by early Sunday morning.
The Port Maitland Pier has been closed due to high winds and waves. Haldimand County Fire Chief Jason Gallagher is urging residents to stay away from this area and avoid all shoreline areas.
The MNRF’s surge model forecast for the eastern end of Lake Erie is indicating a rise in levels of 2.10 metres (6.9 feet) above chart datum of 173.5 m IGLD85 at the gauge in Port Colborne. The peak above critical level is forecast to occur Sunday morning between approximately 7:00 and 11:00.
The MNRF forecast is predicting the following in the vicinity of Port Maitland:
Lake Erie current elevation at Port Maitland: 174.60 m (IGLD 1985)
Lake Erie estimated to peak at: 175.60 m (IGLD 1985), excluding waves
Lake Erie Expected time of peak: Thursday, October 31 (late night)
Critical Level: 175.5 m (IGLD 1985)
Forecast (estimated) Peak Lake Level: 0.10 m above the critical level, excluding waves
Area of Impact: Zone 1 flood zone along Lake Erie Shoreline
The public is asked to stay away from the Lake Erie shoreline due to strong wave action and elevated water levels. Parents are reminded to keep children and pets away from these areas. Property owners are also encouraged to contact their insurance company about flood insurance if they do not already have it.
Haldimand County Emergency Services will be actively monitoring conditions throughout this weather event. Residents should pay close attention to changing weather conditions and watch for updates flood messages.
For information about what to do before, during, and after a flood, visit HaldimandCounty.ca/floods.