2026-06-18 QUINTE CONSERVATION ISSUES SHORELINE CONDITIONS STATEMENT – STORM SURGE AND WAVES

Lake Ontario’s average lake-wide water level is currently at 75.4 m. The region is set to experience sustained winds from the south and southwest of 40-60 km/h from June 18 to June 20. Strong winds will create a storm surge in the eastern end of Lake Ontario and the Bay of Quinte with waves reaching 1-3 metres in height. Shoreline residents along the Bay may see water levels exceed 75.6 m.

Shoreline Conditions: Lake Ontario and the Bay of Quinte remain at above average water levels for this time of year. Current forecasts indicate that levels may exceed 75.7 m on Lake Ontario.

Risks: Strong winds reaching 20-60 km/h will create a storm surge affecting water levels. Shoreline residents should be prepared for potential shoreline flooding, beach submersion, crawl space and septic inundation, and wave driven erosion. As part of Quinte Conservation’s flood forecasting and warning service, we will be monitoring wind, waves, and lake seiche for short-term higher water impacts. Quinte Conservation does not forecast Lake Ontario water levels and wave conditions. Storm surge and large waves can setup quickly with limited warning. When possible, we will do our best to share any information related to these conditions.

Actions: Shoreline residents are reminded to remain vigilant to changes in water levels and weather forecasts.

Additional Information: Lake Ontario water levels peaked on Lake Ontario on May 29 at an elevation of 75.49m. If average rainfall is received, water levels will continue the seasonal decline over the summer. Nonetheless, water levels will remain above average over the coming months. Staff will continue to monitor conditions.

For current water levels or to report changes in water levels, residents are encouraged to visit the Quinte Conservation website or the International Lake Ontario – St. Lawrence River Board website.

This advisory will be in effect until (or updated before) Monday, June 22, 2026.

Quinte Conservation is a community-based environmental protection agency. It serves 18 municipalities in the watersheds of the Moira, Napanee and Salmon Rivers and Prince Edward County. It provides cost-effective environmental expertise and leadership. Quinte Conservation’s main goal is to create a sustainable ecosystem where people and nature live in harmony. More information about Quinte Conservation is available at www.quinteconservation.ca.

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For more information contact: Dave Eastcott, Water Resources Technologist
(613) 968-3434 ext. 126 OR (613) 354-3312 ext. 126