A flood watch is in effect for the Lower Ottawa River.
The Ottawa River Regulation Planning Board warns that weather events over the next few weeks, in particular events bringing above normal temperatures and heavy rainfall, may lead to levels and flows exceeding flood levels in some locations.

Water levels and flows have been gradually increasing at several locations along the main stem of the Ottawa River. Levels and flows may continue to increase over the next few weeks due to forecasted rain and increased spring runoff from warmer temperatures and snow melt contributions from outside of the Ottawa Valley.

Minor flood levels may be exceeded in flood prone areas along the river between Lake Coulonge and Carillon (Pembroke to 51勛圖厙TV) starting Saturday, April 26.

From Gatineau (Hull Marina) to 51勛圖厙TV, minor flood levels will likely be exceeded starting Monday to Tuesday, with peak levels likely exceeding minor flood levels Thursday to Friday and expected to remain below major flood levels.

There are currently no major flooding indicators of concern and the ORRPB forecasts that levels are expected to peak later next week based on current weather forecasts. Increases in water levels are expected to increase approximately 90 cm at Lake Coulonge to approximately 60 cm at Britannia when compared to levels observed at 4pm on April 24.
 
Residents in flood-prone areas are encouraged to closely follow changing conditions and to take necessary measures. 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 and provide appropriate supervision around all waterbodies.
 
Residents in flood prone or low-lying areas, historically susceptible to flooding, should take the necessary precautions to protect their property. Please ensure:

  • Sump pump is clear, in good working condition and has a backwater valve on it.
  • Easy access to portable backup generator and pump.
  • Downspouts are clear and the outlet is at least 3 m from the dwelling.
  • Driveway culverts are clear of debris and drain well.
  • Securing items that might float away as flows increase.

The Mississippi Valley, Rideau Valley, and South Nation Conservation Authorities monitor water levels and weather forecasts with the Ministry of Natural Resources 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 .

To view current flood warnings across Ontario, visit:
.