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2023.06.15 Level Forecast and Lake of the Woods Outflow Reductions

The current level of Lake of the Woods is 323.05 m (1059.9 ft), a 55th percentile level for this time of year. The average lake level decreased by 1.5 cm (0.5 in) over the past week and is expected to decrease by 4 to 6 cm (1.5 to 2 in) over the next week. Lake of the Woods outflow will decrease gradually over the next few weeks in response to declining inflows. Lake of the Woods authorized outflow is scheduled to decrease to:

  • 750 m3/s on Friday, June 15
  • 725 m3/s on Tuesday, June 20
  • 700 m3/s on Friday, June 23

With each of these outflow reductions, the level of the Winnipeg River is expected to decrease. River levels will drop with each outflow reduction by approximately:

  • 7 cm (2.5 in) below the Norman Dam
  • 5 cm (2 in) above the Dalles
  • 2 to 6 cm (0.5 to 2 in) at Minaki

The current level of Lac Seul is 355.77 m (1167.2 ft), a 35th percentile level for this time of year. The lake level increased by 8 cm (3 in) over the past week and is expected to increase by approximately 4 to 6 cm (1.5 to 2 in) over the next week. Lac Seul authorized outflow is 100 m3/s with no changes scheduled.

2023.06.12 Lake of the Woods Outflow Decrease

With Namakan and Rainy Lakes returning to their respective Rule Curves, large outflow decreases from Rainy Lake have started and as a result inflow to Lake of the Woods will begin dropping significantly over the next two weeks. To maintain preferred summer levels on Lake of the Woods while minimizing impacts to levels on the Winnipeg River, gradual outflow decreases are scheduled to start tomorrow.

Lake of the Woods authorized outflow will decrease to 775 m3/s on Tuesday, June 13. The level of the Winnipeg River is expected to decrease by approximately 11 cm (4 in) below the Norman Dam, 7 cm (3 in) above the Dalles and 7 cm (3 in) at Minaki.

Additional outflow decreases will be posted in the next few days.

2023.06.08 Level Forecast

The current level of Lake of the Woods is 323.07 m (1059.9 ft), a 60th percentile level for this time of year. The average lake level increased by 4 cm (1.5 in) over the past week and is expected to remain stable over the next week. Lake of the Woods authorized outflow is 800 m3/s.

With Namakan and Rainy Lakes returning to their respective Rule Curves, large outflow decreases from Rainy Lake are expected next week. As a result, Lake of the Woods outflow will therefore need to be gradually reduced to maintain preferred summer levels as inflow to the lake declines. A schedule of outflow reductions will be provided in advance.

The current level of Lac Seul is 355.69 m (1167.0 ft), a 45th percentile level for this time of year. The lake level increased by 14 cm (5.5 in) over the past week and is expected to increase by approximately 12 cm (4.5 in) over the next week. Lac Seul authorized outflow is 100 m3/s with no changes scheduled.


Come learn about the Winnipeg River drainage basin at the Lake of the Woods Control Board Public Open House on June 14, 2023 in Kenora.

2023.06.01 Level Forecast

The current level of Lake of the Woods is 323.03 m (1059.8 ft), a 60th percentile level for this time of year. The average lake level increased by 1.5 cm (0.5 in) over the past week and is expected to remain stable over the next week. Lake of the Woods authorized outflow is 800 m3/s with no changes scheduled.

The current level of Lac Seul is 355.55 m (1166.5 ft), a 45th percentile level for this time of year. The lake level increased by 13 cm (5 in) over the past week and is expected to increase by 9 to 11 cm (3 to 4 in) over the next week. Lac Seul authorized outflow is 100 m3/s with no changes scheduled.


Come learn about the Winnipeg River drainage basin at the Lake of the Woods Control Board Public Open House on June 14, 2023 in Kenora.

2023.05.25 Level Forecast

The current level of Lake of the Woods is 323.01 m (1059.7 ft), a 65th percentile level for this time of year. The average lake level increased by 5 cm (2 in) over the past week and is expected to increase by 3 to 4 cm (1 to 2 in) over the next week. Lake of the Woods authorized outflow is 800 m3/s with no changes scheduled.

The current level of Lac Seul is 355.43 m (1166.1 ft), a 45th percentile level for this time of year. The lake level increased by 14 cm (5.5 in) over the past week and is expected to increase by 11 to 13 cm (4 to 5 in) over the next week. Lac Seul authorized outflow is 100 m3/s with no changes scheduled.


Come learn about the Winnipeg River drainage basin at the Lake of the Woods Control Board Public Open House on June 14, 2023 in Kenora.

LWCB Public Open House – June 14 in Kenora

Come learn about the Winnipeg River drainage basin at the Lake of the Woods Control Board (LWCB) Public Open House on June 14, 2023 in Kenora.

Board members and Lake of the Woods Secretariat staff will be available to discuss water level and flow conditions, and answer questions.

When: Wednesday, June 14, 2023 from 7:00 to 8:30 pm

Where: Travelodge, Kenora (800 Highway 17 East)

Want to contact staff at the Lake of the Woods Secretariat?

Call 1-800-661-5922 or email secretariat@lwcb.ca

2023.05.18 Level Forecast and Risk of Above-Normal Precipitation Next Week

Although conditions are expected to be dry over the Victoria Day long weekend, forecasts are indicating above-normal precipitation from May 23 onwards. Both, Environment and Climate Change Canada’s probabilistic forecast, and the National Weather Services’ 6-10 day outlook, are predicting above-normal precipitation starting mid to late next week. Tributary flows, lake inflows and lake levels are already high across the southern half of the basin and this precipitation will amplify those conditions.

At Lake of the Woods and on the Winnipeg River, additional outflow increases will be required to slow the rate of rise on the lake. At these flow rates, the level along the Winnipeg River is expected to continue to rise and levels at Minaki will also rise more with each outflow increase.

In the northern half of the basin, flows and levels are currently in the low-normal range. Depending on the amount of precipitation impacting the Lac Seul and English River basins, outflow changes may or may not be required to maintain normal levels and flow rates.

The current level of Lake of the Woods is 322.96 m (1059.6 ft), a 65th percentile level for this time of year. The average lake level increased by 10 cm (4 in) over the past week and is expected to increase by 7 to 9 cm (2 to 3 in) over the next week. Lake of the Woods authorized outflow is 800 m3/s with no changes scheduled at this time.

The current level of Lac Seul is 355.29 m (1165.6 ft), a 50th percentile level for this time of year. The lake level increased by 16 cm (6 in) over the past week and is expected to increase by 11 to 17 cm (4 to 7 in) over the next week. Lac Seul authorized outflow is 100 m3/s with no changes scheduled.

2023.05.16 Lake of the Woods Outflow Increase

High local inflow conditions in the headwaters of the Rainy-Namakan basin are resulting in additional increases to Rainy Lake outflow. Inflows to Lake of the Woods therefore remain high and the lake level continues to rise. While balancing rising flows on the Winnipeg River, another small increase to Lake of the Woods outflow is scheduled to slow the rate of rise on the lake.

Lake of the Woods outflow will increase to 800 m3/s tomorrow, Wednesday, June 17. This flow change will cause levels along the Winnipeg River to increase by 10 cm (4 in) below the Norman Dam, 6 cm (2 in) above the Dalles and 7 cm (3 in) at Minaki.

2023.05.11 Level Forecast

The current level of Lake of the Woods is 322.86 m (1059.2 ft), a 65th percentile level for this time of year. The average lake level increased by 9 cm (3 in) over the past week and is expected to increase by 6 to 8 cm (2 to 3 in) over the next week. Lake of the Woods authorized outflow is 750 m3/s with no changes scheduled.

The current level of Lac Seul is 355.13 m (1165.1 ft), a 55th percentile level for this time of year. The lake level increased by 16 cm (6 in) over the past week and is expected to increase by 16 to 18 cm (6 to 7 in) over the next week. Lac Seul authorized outflow is 100 m3/s with no changes scheduled.