Ottawa RiverRegulationPlanning BoardCommission de planificationde la régularisationde la rivière des Outaouais

INCREASING FLOOD RISK ALONG THE OTTAWA RIVER (Mattawa to the Montreal Region). See the River Conditions Forecast message that is updated daily. Read more

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Ottawa River Regulation Planning Board

The Planning Board was established to ensure integrated management of the principal reservoirs of the Ottawa River Basin:

  • to reduce flood and drought impacts along the Ottawa River and its tributaries, all the way down to the Montreal Region
  • while maintaining beneficial water uses in the basin.

Current Conditions Summary

Water levels in metres:

View current conditions

River Conditions Forecast

Last Update: 2025-05-16 1:56 PM
Next Update: 2025-05-20 4:30 PM

Spring runoff in the northern part of the basin continues to decline gradually. Along the main stem of the Ottawa River, water levels and flows are expected to continue their slow decrease over the coming week. Rainfall over the weekend is expected to slow down the decrease of levels and flows. Our website Forecasts section provides expected water levels over a four-day horizon in your area.

View complete forecast

Special Feature

Increasing Flood Risk along the Ottawa River

Read the press release >> April 22, 2025 Press Release

See the “River Conditions Forecasts” message for the latest update on river conditions and details as to what locations may experience flooding over the next few days.

In the message:

Latest News

2025: INCREASING FLOOD RISKS ALONG THE OTTAWA RIVER

Press Release posted on 2025-04-22 by Ottawa River Regulating Committee

The Ottawa River Regulating Committee warns that levels and flows along the main stem of the Ottawa River, from Mattawa

Read more

Beginning of Hydrologic Forecast for Freshet 2025

Bulletins posted on 2025-03-21 by Ottawa River Regulation Secretariat

The detailed four-day forecast has now begun. The Ottawa River Regulating Committee provides hydrological forecasts to the public at nine

Read more

2025: RISING OTTAWA RIVER WATER LEVELS

Press Release posted on 2025-03-19 by Ottawa River Regulating Committee

The Ottawa River Regulating Committee would like to inform watershed residents that levels and flows along the Ottawa River have

Read more

See all articles