Ottawa RiverRegulationPlanning BoardCommission de planificationde la régularisationde la rivière des Outaouais

Current Conditions

Publication: 2024-04-20

Snow Map

Locations to display: River locations only | Reservoirs only | Other locations

Ottawa River at Temiscaming

Current Conditions

Daily Outflow (m3/s)
(2024-04-20 04:00:00)
1730
Graph View and Advanced Data

Grenville

Current Conditions

Water levels in metres
(2024-04-20 11:00:00)
41.28
Graph View and Advanced Data

Thurso

Current Conditions

Water levels in metres
(2024-04-20 11:00:00)
41.59
Graph View and Advanced Data

Gatineau (Hull)

Current Conditions

Water levels in metres
(2024-04-20 11:00:00)
42.52
Graph View and Advanced Data

Lake Coulonge at Fort-Coulonge

Current Conditions

Water levels in metres
(2024-04-20 11:00:00)
107.35
Graph View and Advanced Data

Ottawa River at Carillon

Current Conditions

Water levels in metres
(2024-04-20 11:00:00)
40.53
Daily Outflow (m3/s)
(2024-04-20 11:00:00)
4292
Graph View and Advanced Data

Lake Deschenes at Britannia (Ottawa)

Current Conditions

Water levels in metres
(2024-04-20 04:00:00)
59.4
Daily Outflow (m3/s)
(2024-04-20 04:00:00)
3070
Graph View and Advanced Data

Ottawa River at Chats Falls GS

Current Conditions

Water levels in metres
(2024-04-20 05:00:00)
74.76
Daily Outflow (m3/s)
(2024-04-20 05:00:00)
2936
Graph View and Advanced Data

Ottawa River at Chenaux GS

Current Conditions

Water levels in metres
(2024-04-20 05:00:00)
85.94
Daily Outflow (m3/s)
(2024-04-20 05:00:00)
2571
Graph View and Advanced Data

Pembroke

Current Conditions

Water levels in metres
(2024-04-20 04:00:00)
112.49
Graph View and Advanced Data

Des Joachims

Current Conditions

Water levels in metres
(2024-04-20 05:00:00)
151.33
Daily Outflow (m3/s)
(2024-04-20 05:00:00)
2128
Graph View and Advanced Data

Mattawa

Current Conditions

Water levels in metres
(2024-04-20 04:00:00)
153.64
Graph View and Advanced Data

Ottawa River at Otto Holden GS

Current Conditions

Water levels in metres
(2024-04-20 05:00:00)
177.22
Daily Outflow (m3/s)
(2024-04-20 05:00:00)
1810
Graph View and Advanced Data

River Levels and Flows

Water levels at 24:00h in metres2024-04-132024-04-142024-04-152024-04-162024-04-172024-04-182024-04-192024-04-20
Otto Holden Generating StationGraph View and Advanced Data Agency: OPG177.26177.23177.18177.18177.19177.20177.20177.22
MattawaGraph View and Advanced Data Agency: WSC154.01154.01153.59153.68153.71153.64153.64153.64
Des Joachims Generating StationGraph View and Advanced Data Agency: OPG151.39151.38151.33151.34151.30151.32151.31151.33
PembrokeGraph View and Advanced Data Agency: OPG112.43112.62112.64112.53112.49112.50112.49112.49
Lake Coulonge at Fort-CoulongeGraph View and Advanced Data Agency: HQ106.74107.12107.42107.52107.46107.40107.38107.35
Chenaux Generating StationGraph View and Advanced Data Agency: OPG86.1586.1886.1286.1186.0486.0085.9785.94
Chats Lake at ArnpriorGraph View and Advanced Data Agency: OPG74.2774.4674.6874.8174.8674.8474.8274.76
Lake Deschenes at Britannia (Ottawa)Graph View and Advanced Data Agency: WSC58.8659.0059.1759.3259.3759.4359.4259.40
Gatineau (Hull)Graph View and Advanced Data Agency: HQ42.1342.3042.4542.5542.5942.6242.6242.52
ThursoGraph View and Advanced Data Agency: HQ41.6041.7041.7441.7041.6441.6741.6641.59
GrenvilleGraph View and Advanced Data Agency: HQ41.4541.5141.4941.3841.2541.3141.3041.28
Carillon Generating StationGraph View and Advanced Data Agency: HQ41.0741.0841.0440.7440.5340.5140.5140.53
Average Daily Outflow (m3/s)2024-04-132024-04-142024-04-152024-04-162024-04-172024-04-182024-04-192024-04-20
Ottawa River at TemiscamingGraph View and Advanced Data Agency: PSPC17641872170616101691173117361730
Ottawa River at Otto Holden GSGraph View and Advanced Data Agency: OPG18742015184917211783181018091810
Des JoachimsGraph View and Advanced Data Agency: OPG23822530241020982150212921302128
Ottawa River at Chenaux GSGraph View and Advanced Data Agency: OPG17642070245127052741266726032571
Ottawa River at Chats Falls GSGraph View and Advanced Data Agency: OPG19812255259128762986302129802936
Lake Deschenes at Britannia (Ottawa)Graph View and Advanced Data Agency: WSC20322208250228122982309631243070
Ottawa River at CarillonGraph View and Advanced Data Agency: HQ35623526393343054305420643394292

River Conditions Forecast

Last Update: 2024-04-19 3:13 PM
Next Update: 2024-04-20 4:00 PM

Flows and water levels along the main stem of the Ottawa River are slightly above normal for this time of year from Mattawa down to Lake Deschenes due to recent and ongoing precipitation. Flows and levels should be fairly stable in all locations over the next few days. Levels and flows should begin to decline next week everywhere. Please refer to the forecast section of our website for more information about the river conditions in your area. Minor flooding in low-lying areas may occur over the next few days. Low-lying areas are those locations that regularly flood during the spring freshet period.

View complete forecast

Additional content

About this map

This map includes markers representing the location of gauges where information on flows and water levels are available. Data collected at gauges shown on the ‘River locations only’ and ‘Reservoirs only’ maps is used for the integrated management of the principal reservoirs within the Ottawa River Basin.

Instruction:

The coloured markers on this map depict conditions (level or flow) as a range of conditions categorized in three groups:  for normal conditions,  for above normal,  for below normal. The marker is  when the current day’s value or percentile are not available.

Click on any marker to see the most recent data from this location and what type of data is measured there. To view data related to the principal reservoirs in the basin, select ‘Reservoirs only’ in the upper right corner. Near real-time and historical data is available for additional locations by selecting ‘Graph View and Advanced Data’. Water levels at 24:00 means at midnight.

Terms of Use:

The data provided by this web service may not be reproduced or redistributed.  Contact the Ottawa River Regulation Secretariat (see Contact us) for information on how to obtain historical data directly from the data owner.

Users of flow data and water level data shown on this website are cautioned to consider the unverified nature of the information before using it for decisions making.  Please see the Disclaimer for further details.

The flow rate and actual levels can change rapidly without warning, particularly during the freshet period. We advise those using bodies of water to exercise caution and to follow safety rules at all times.

Understanding Range of Conditions:

The three ranges are based on percentiles, which are computed from the observations of the current day of the year over the last 30 years. The percentile (P) is the percent of all data that is lower than the actual value for the current day of the year.

 : Normal conditions, between P25% and P75%

 : Above normal conditions, P is equal or greater than P75%

 : Below normal conditions, P is lower than P25%

: Current day value or percentile not available