If you feel a sense of déja-vu when you read this, you are not imagining things. We have been sharing heavy rain forecasts with you frequently for about three weeks now.
Rainfall of 10 to 25 mm is possible Saturday through Monday, May 20, 2019. A strong wind warning is in effect as current forecasts suggests winds will continue to have a noticeable impact on water levels.
According to the South Nation Conservation Authority, Lake Ontario’s water levels rose rapidly over the past week due to record inflows from Lake Erie, combined with increased Ottawa River flows, which resulted in Lake Ontario outflows being reduced.
Levels are already at critical values in some areas. Flooding and other high-water impacts continue to be reported around the upper St. Lawrence during periods of active weather.
The latest forecast from the International Lake Ontario – St. Lawrence River Board suggests that water levels may reach or exceed highs of 2017 within the next two weeks.
Lake Ontario’s increased outflows may increase St. 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. Sandbags are available to residents in flood prone areas.
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 Thursday, May 23, 2019.
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 www.ijc.org/en/loslrb.
Please visit www.nation.on.ca for more information. To provide feedback with respect to changes in water related conditions please email [email protected], post on our Facebook (/SouthNationConservation) or Twitter (@SouthNationCA).
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