Ottawa

How high the Ottawa River could get: Tuesday's forecast

Peak Ottawa River levels are no longer set to reach as high west of the National Capital Region, but in urban Ottawa and Gatineau, it's a different story.

Water level in Pembroke, Ont., has dropped, but should rise again

Peak Ottawa River levels are no longer set to reach as high west of the capital, but in urban Ottawa and Gatineau, the forecasted peaks on Wednesday and Thursday are still expected to significantly exceed levels seen during 2017's devastating floods.

Over the weekend, the river surpassed 2017 flood water levels in Pembroke, Ont., Lac Coulonge, Arnprior, Ont., and west Ottawa's Britannia neighbourhood, setting all-time records in recorded history for in each location except Pembroke.

The Ottawa River Regulating Committee, which controls reservoir levels along the length of the river basin, said at 5 p.m. Tuesday the water level in Pembroke is at 113.23 metres above sea level and is expected to rise another 17 centimetres to a peak of 113.4 metres on Thursday, 20 centimetres lower than originally predicted.

Lac Coulonge is at 109.06 metres, down three centimetres from Monday morning. The river reached its peak there on Tuesday and is now receding.

Arnprior is at 76.31 metres, up 10 centimetres from Monday morning, and is expected to rise another four centimetres to a peak of 76.35 metres late on Tuesday.

Britannia in west Ottawa is at 60.67 metres, up 12 centimetres from Monday morning, and is expected to rise another 18 centimetres to a peak of 60.85 metres on Wednesday.

The Hull marina in Gatineau is at 45.16 metres, up 10 centimetres from Monday morning, and is expected to rise another 34 centimetres to a peak of 45.5 metres on Thursday.

Thurso, Que., is at 43.65 metres, up three centimetres from Monday morning, and is expected to rise another 20 centimetres to a peak of 43.85 metres on Wednesday. (Its forecast peak level has risen by five centimetres.)

And Hawkesbury, Ont., is at 42.76 metres, up two centimetres from Monday morning, and is expected to rise another 14 centimetres to a peak of 42.9 metres on Wednesday.

Can't see the infographics above? Click here for this year's forecasted river level peaks, and click here to see how much higher water levels are expected to be this year than in 2017.

The next update is expected at 9 a.m. Wednesday.

All forecasts are approximate and subject to change based on the weather and other factors.