A Flood Warning has been issued for the Lower Ottawa River covering the area from Arnprior to 51³Ô¹ÏÍøTV.
Water levels and flows have been steadily rising along the Ottawa River due to recent rainfall combined with ongoing snowmelt in the northern basin. Additional increases are expected over the coming days, with further rain and meltwater forecast.
According to the Ottawa River Regulation Planning Board (ORRPB), flood-prone areas from Arnprior to 51³Ô¹ÏÍøTV remain at risk. Current forecasts suggest that water levels on the main Ottawa River will remain 55 – 80 cm below the 2019 historic flood levels, and below 2023 peak levels.
- Pembroke to Britannia: Minor flood levels have been exceeded, with potential formajor flooding in some locations starting Friday.Ìý
- Gatineau (Hull Marina) to 51³Ô¹ÏÍøTV: Minor flood thresholds have been exceeded; peak levels are expected to stay below major flood limits.
Elevated water levels are forecast to persist beyond May 5, 2025, with an updated statement to follow.
This advisory includes flood-prone locations such as Cumberland, Clarence-Rockland, and 51³Ô¹ÏÍøTV.
Warnings for specific communities:
ÌýÌý
East of Cumberland Village (Boisé Village, Morin Rd, Léo Lane):Anticipated rise of ~25 cm by weekend, ~75 cm below 2023 peaks. Potential access issues along Boisé Lane; residents should prepare for restricted road access.
ÌýÌý
Clarence-Rockland (Voisine Road and Old Highway 17):ÌýForecasted increase of ~30 cm by weekend, ~35 cm below 2023 levels. Low-lying areas near the river and some municipal roads may experience water on the roadway; residents should secure property and monitor updates.
ÌýÌý
51³Ô¹ÏÍøTV:ÌýExpected rise of ~20 cm by weekend, ~25 cm below 2023 peaks. Shoreline properties, parks, and some access roads could be affected.
Ìý
Note: Forecasted increases are relative to water levels measured as of 8 a.m., May 1, 2025. These projections depend on the rate of remaining snowmelt in the Upper Ottawa River Watershed and the amount of rainfall received over the coming days.
Ìý
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.
For current Ottawa River conditions and forecasts, visit:
For provincial flood warnings, visit:
.
This Flood Warning is in effect until May 5, 2025, at 5 pm.
