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Issued 2021.11.15

The current level of Lake of the Woods is 322.57 m (1058.3ft), a 10th percentile level for this time of year. The average lake level rose by 4 cm (2 in) over the past week and is expected to rise by 1 to 3 cm (1 in) over the next week. Lake of the Woods authorized outflow is 90 m³/s with no changes scheduled. 

On Thursday November 18th there will be a full outage of both the Norman Dam and Kenora Powerhouse to create a safe work environment for Hydro One to carry out maintenance on the transmission system.  The outage will begin at 8:00am CST and is expected to finish at 11:00am.  The combined flow from the dam and the powerhouse will be reduced from 90 to 15 m3/s for the period of the outage.  Given the short duration of the outage and the time of year, no ecological impacts are anticipated.  The level of the Winnipeg River is expected to drop by up to 10 to 15 cm immediately below the Norman Dam during the outage and should return to the pre-outage level once work is complete.  The level change will be less at locations farther downstream. 

The current level of Lac Seul is 355.93 m (1167.7 ft), a 15th percentile level for this time of year. The average lake level rose by 7 cm (3 in) over the past week and is expected to rise by 1 to 5 cm (1 to 2 in) over the next week. Lac Seul authorized outflow will increase from 75 to 150 m³/s on Tuesday November 16. 

Over the coming weeks, outflow from both lakes will increase to meet the anticipated winter hydropower demand.  Increases are expected to be gradual and should be complete before an ice cover is formed on the rivers.  Outflow increases will be announced on this Noticeboard.