South Nation Conservation has advised that the water levels in Clarence-Rockland and Alfred-Plantagenet have risen 0.04m in the last 48 hours. Levels are expected to continue to rise over the next 24 to 48 hours without exceeding initial peaks observed last week.
Due to the forecast uncertainty it is difficult to accurately predict how quickly water levels will rise and when river conditions may peak. Rainfall amounts of 10 to 15 mm is forecast today, May 10.
Water levels along the Ottawa River from Mattawa to Montreal are increasing due to recent precipitation and spring runoff upstream in the Ottawa River basin.
Locations from Point Gatineau down to the Grenville/Hawkesbury area could see water levels rise, without exceeding the initial peak observed last week, depending on the amount of precipitation received.
All flood-prone areas along the Ottawa River from Lac Coulonge down to the Montreal Archipelago are at risk as snowmelt continues along the upper Ottawa River. Levels are expected to remain high for the next two to three weeks.
Risk is highly dependent on the amount of precipitation that is received.
Water levels east of Cumberland Village (Boise Village, Morin Road, Leo Lane) are expected to increase over the next 24 to 48 hours but are not expected to exceed the peak levels observed last week.
Residents in flood-prone areas are encouraged to closely monitor conditions and take necessary actions. Sandbags are available to residents in flood prone areas.
Keep sandbags in place for at least two more weeks
Residents are strongly urged to keep sandbags in place for at least the next two weeks.
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.
This flood warning is in effect until Tuesday, May 14, 2019 at 5:00 p.m.
South Nation Conservation (SNC) and its Ottawa partners, the Rideau Valley and Mississippi Valley Conservation Authorities, monitor the water levels and weather forecasts with the Ministry of Natural Resources and Forestry as part of the Flood Forecasting and Warning Program. Updates are provided as conditions change.
The Ottawa River Regulation Planning Board will be reassessing forecast conditions and providing hydrological condition updates on its website daily at www.ottawariver.ca/forecast.php.
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).
For more information regarding the Ottawa River, visit www.ottawariver.ca.
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