FLOOD WARNING: Saint Lawrence River – Update #4

14-Jun-2019 14-Jun-2019

Weather Forecast:
Rainfall of 15 to 25 mm and strong winds are possible Saturday, June 15, 2019.

Environmental Conditions:
Lake Ontario’s water levels have reached the record peaks observed in 2017 as of two weeks ago and have since slightly dropped and stabilized.

Levels are already at critical values in some areas. Flooding and other high-water impacts continue to be reported around the upper Saint Lawrence River during periods of active weather.

The latest forecast from the International Lake Ontario – St. Lawrence River Board suggests that Lake Ontario’s water levels may rise slightly in the coming days as a result of rainfall and high inflows from Lake Erie. Levels are expected to resume declining slowly thereafter as high outflows from Lake Ontario continue.

Lake Ontario’s increased outflows may increase Saint Lawrence River levels upstream of Iroquois throughout Edwardsburg/Cardinal and Augusta Township.

Residents are advised that wind may cause large waves, further aggravating water levels which may affect structures close to shore.

Residents in flood-prone areas are encouraged to closely monitor conditions and take necessary actions.

Residents are advised to stay away from watercourses where flows are high and where banks might be unstable. Parents are encouraged to explain dangers to children.

Residents in flood prone or low-lying areas historically susceptible to flooding are encouraged to closely follow evolving conditions and take necessary precautions to protect their property.

This Flood Warning statement is in effect until Friday, June 21, 2019 at 5:00 PM

SNC monitors the water levels and weather forecasts as part of the Flood Forecasting and Warning Program. Updates are provided as conditions change.

The International Lake Ontario – St. Lawrence River Board continues to monitor conditions on an ongoing basis. Information on hydrologic conditions, water levels and outflows, including graphics and photos, are available on the Board’s website at

Please visit for more information. To provide feedback with respect to changes in water related conditions please email, post on our Facebook (/SouthNationConservation) or Twitter (@SouthNationCA).

FOR MORE INFORMATION: Omar Kana’n, Water Resources Specialist – Engineering,

FOR MEDIA INQUIRIES: Taylor Campbell, Communications Specialist,
613-984-2948, ext. 296,

Forwarded to: All Flood Forecasting and Warning Directory