Ottawa RiverRegulationPlanning BoardCommission de planificationde la régularisationde la rivière des Outaouais




Publication: 2024-04-14 3:22 PM

Forecast Values

LocationType of value 2024-04-14
Ottawa River at Temiscaming Graph ViewFlow (m3/s)1825170017001700
Ottawa River at Mattawa Graph ViewLevel (m)153.90153.75153.70153.70
Ottawa River at Pembroke Graph ViewLevel (m)112.75112.65112.60112.55
Lake Coulonge at Fort-Coulonge Graph ViewLevel (m)107.40107.65107.65107.60
Chats Lake at Arnprior Graph ViewLevel (m)74.4574.9075.0575.00
Lake Deschenes at Britannia Graph ViewLevel (m)59.0559.2559.4559.50
Flow (m3/s)2230256530203260
Ottawa River at Carillon Graph ViewFlow (m3/s)3560372540004275

River Conditions Forecast

Last Update: 2024-04-14 3:56 PM
Next Update: 2024-04-15 4:00 PM

Significant rainfall (up to 75 mm) was received in the Abitibi-Timiskaming area between April 11 and 13. This event melted most of the remaining snow, which increased the amount of runoff. The combined effect of rain and snowmelt caused inflows in that part of the basin to increase very rapidly. Water levels and flows along the main stem of the Ottawa River from Mattawa down to Lac Coulonge have increased rapidly as a result. Moderate precipitation amounts (15- 40 mm) elsewhere are causing levels and flows to increase gradually. Flows and levels are expected to continue increasing over the next few days from Pembroke down to the Montreal Region and should start decreasing later this week. Minor flooding in low-lying areas may occur over the next week. Low-lying areas are those locations that regularly flood during the spring freshet period. See our press release for more information.  Please refer to the forecast section of our website for more information about the expected rate of level increase.