Ottawa RiverRegulationPlanning BoardCommission de planificationde la régularisationde la rivière des Outaouais

Current Conditions

Publication: 2021-05-06

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

Ottawa River at Temiscaming

Current Conditions

Daily Outflow (m3/s)
n/a
Graph View and Advanced Data

Grenville

Current Conditions

Water levels in metres
(2021-05-05 21:00:00)
41.18
Graph View and Advanced Data

Thurso

Current Conditions

Water levels in metres
(2021-05-05 21:00:00)
41.18
Graph View and Advanced Data

Gatineau (Hull)

Current Conditions

Water levels in metres
(2021-05-05 21:00:00)
41.38
Graph View and Advanced Data

Lake Coulonge at Fort-Coulonge

Current Conditions

Water levels in metres
(2021-05-05 21:00:00)
106.24
Graph View and Advanced Data

Ottawa River at Carillon

Current Conditions

Water levels in metres
(2021-05-05 21:00:00)
41.08
Daily Outflow (m3/s)
(2021-05-05 21:00:00)
1475
Graph View and Advanced Data

Lake Deschenes at Britannia (Ottawa)

Current Conditions

Water levels in metres
(2021-05-05 21:00:00)
58.23
Daily Outflow (m3/s)
(2021-05-05 21:00:00)
1110
Graph View and Advanced Data

Ottawa River at Chats Falls GS

Current Conditions

Water levels in metres
(2021-05-05 22:00:00)
74.06
Daily Outflow (m3/s)
(2021-05-05 22:00:00)
639
Graph View and Advanced Data

Ottawa River at Chenaux GS

Current Conditions

Water levels in metres
(2021-05-05 22:00:00)
85.87
Daily Outflow (m3/s)
(2021-05-05 22:00:00)
418
Graph View and Advanced Data

Pembroke

Current Conditions

Water levels in metres
n/a
Graph View and Advanced Data

Des Joachims

Current Conditions

Water levels in metres
(2021-05-05 22:00:00)
152.05
Daily Outflow (m3/s)
(2021-05-05 22:00:00)
800
Graph View and Advanced Data

Mattawa

Current Conditions

Water levels in metres
(2021-05-05 21:00:00)
152.48
Graph View and Advanced Data

Ottawa River at Otto Holden GS

Current Conditions

Water levels in metres
(2021-05-05 22:00:00)
177.01
Daily Outflow (m3/s)
(2021-05-05 22:00:00)
275
Graph View and Advanced Data

River Levels and Flows

Water levels at 24:00h in metres 2021-04-28 2021-04-29 2021-04-30 2021-05-01 2021-05-02 2021-05-03 2021-05-04 2021-05-05
Otto Holden Generating Station Graph View and Advanced Data Agency: OPG 177.03 177.02 177.09 177.10 177.11 177.04 177.23 177.01
Mattawa Graph View and Advanced Data Agency: WSC 152.24 152.19 152.18 152.19 152.31 152.30 152.15 152.48
Des Joachims Generating Station Graph View and Advanced Data Agency: OPG 152.06 151.98 152.03 152.07 152.12 152.01 152.04 152.05
Pembroke Graph View and Advanced Data Agency: OPG 111.23 111.26 111.27 111.26 111.19 111.26 111.29
Lake Coulonge at Fort-Coulonge Graph View and Advanced Data Agency: HQ 106.11 106.19 106.22 106.19 106.17 106.19 106.22 106.24
Chenaux Generating Station Graph View and Advanced Data Agency: OPG 85.94 86.00 86.00 85.97 85.93 86.04 86.30 85.87
Chats Lake at Arnprior Graph View and Advanced Data Agency: OPG 74.10 74.00 74.06 74.07 74.10 74.08 74.09 74.06
Lake Deschenes at Britannia (Ottawa) Graph View and Advanced Data Agency: WSC 58.08 58.17 58.08 58.10 58.08 58.08 58.11 58.23
Gatineau (Hull) Graph View and Advanced Data Agency: HQ 41.37 41.43 41.32 41.36 41.37 41.41 41.40 41.38
Thurso Graph View and Advanced Data Agency: HQ 41.20 41.23 41.13 41.18 41.19 41.21 41.23 41.18
Grenville Graph View and Advanced Data Agency: HQ 41.18 41.22 41.16 41.17 41.17 41.18 41.19 41.18
Carillon Generating Station Graph View and Advanced Data Agency: HQ 41.08 41.09 41.07 41.05 41.07 41.05 41.07 41.08
Average Daily Outflow (m3/s) 2021-04-28 2021-04-29 2021-04-30 2021-05-01 2021-05-02 2021-05-03 2021-05-04 2021-05-05
Ottawa River at Temiscaming Graph View and Advanced Data Agency: PSPC 231 221 240 219 231 240 229
Ottawa River at Otto Holden GS Graph View and Advanced Data Agency: OPG 284 269 261 262 274 311 307 275
Des Joachims Graph View and Advanced Data Agency: OPG 464 507 420 415 410 598 676 800
Ottawa River at Chenaux GS Graph View and Advanced Data Agency: OPG 690 617 660 707 676 593 664 418
Ottawa River at Chats Falls GS Graph View and Advanced Data Agency: OPG 964 979 777 890 850 911 908 639
Lake Deschenes at Britannia (Ottawa) Graph View and Advanced Data Agency: WSC 914 1036 922 937 912 918 2 1110
Ottawa River at Carillon Graph View and Advanced Data Agency: HQ 1293 1377 1655 1545 1595 1475 1450 1475

River Conditions Forecast

Last Update: 2021-05-04 2:09 PM
Next Update: 2021-05-11 3:00 PM

Discharges from northern reservoirs have been reduced to ensure they are able to reach their summer recreational levels. On the main stem of the Ottawa River, flows and levels are expected to remain fairly stable over the coming week. Due to the early freshet and lack of snowmelt runoff, flows and levels are expected to be below normal for this time of the year for the coming weeks.

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. These are used for the integrated management of the principal reservoirs within the Ottawa River Basin and are also of interest to basin residents.

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