Temiscaming
Temiscaming
Pembroke
Pembroke
Fort-Coulonge
Fort-Coulonge
Arnprior
Arnprior
Ottawa
Ottawa
Carillon
Carillon
Ottawa River Basin

Publication: 2019-05-20 15:00

River Conditions Forecast

Upper reservoirs in the northern portion of the basin continue to retain spring runoff to minimize flooding in the downstream river system. In the Abitibi-Timiskaming area where reservoirs are full, excess runoff remains significant with ongoing precipitation and continues to flow to downstream locations. In the Mattawa and Pembroke/Westmeath areas, the levels are expected to be fairly stable today and tomorrow. From the Lac Coulonge region down to the Lac Deschenes area, levels should continue to decline slowly over the next few days. For the lower reach from Gatineau(Hull) down to the Hawkesbury/Grenville region, levels are declining progressively as less rainfall than expected was received in the central part of the basin in the last few days.
2019-05-20 17:00 Forecast Peak Levels

This message will be updated
on May 21, 2019 at 5 p.m..

Levels and Flows Forecast
Ottawa River Basin

Comment: Hydrologic forecasts for the spring freshet of 2019. Comment: During the spring freshet, forecasts are updated on most days and are made available at 5:00 p.m.

(Publication: 2019-05-20 15:51) Date/Time Value 2019-05-20 2019-05-21 2019-05-22 2019-05-23
Ottawa River at Temiscaming 3050 3050 3050 2950
Ottawa River at Pembroke 113.34 113.37 113.37 113.35 113.31
Lake Coulonge at Fort-Coulonge 108.71 108.69 108.68 108.67 108.64
Chats Lake at Arnprior 75.78 75.76 75.74 75.72 75.70
Lake Deschenes at Britannia 60.30 60.28 60.25 60.22 60.17
(Ottawa) 5028 5050 4950 4850 4800
Ottawa River at Carillon 7600 7500 7300 7100 6900

Level forecasts are for 24h. Discharge forecasts correspond to average daily discharges for specified dates.

Note that water levels are measured in metres above mean sea levels.

Warning

  • Hydrological forecasting is based on meteorological forecasting and is therefore subject to the same level of uncertainty. These data are provided for information purposes only.
  • The table is updated once in the afternoon, on a daily basis as necessary.
  • 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.