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Secretariat Update 2022.07.28 Level Forecast

Secretariat Update 2022.07.28 Level Forecast

July 28, 2022

The current level of Lake of the Woods is 324.03 m (1063.1 ft), over 95th percentile level for this time of year. The average lake level declined by 6cm (2 in) over the past week. The lake level is above the 2014 peak of 323.78 m (1062.29 ft) and is below the record peak since regulation began of 324.31 m (1064.0 ft), set in July of 1950. The dams in Kenora remain fully open. Over the next week the lake level is expected to decline by 9 to 12 cm (4 to 5 in).

Upstream, the level of Rainy Lake has dropped below the All Gates Open level, allowing the closure of some dam gates earlier this week. There will be further outflow reductions from Rainy Lake next week and likely the week after, depending on rainfall over this period. These flow reductions will have a direct effect on the level of Lake of the Woods, increasing its rate of decline. 

With decreasing inflows to Lake of the Woods, the outflow from the lake will also gradually drop. Levels along the Winnipeg River will see moderate decreases of up to 8 cm (3 in) directly below the Norman Dam and 6 cm (2 in) at Minaki.

The current level of Lac Seul is 356.71 m (1170.3 ft), 85th percentile level for this time of year. The level of the main body of Lac Seul changed little over the past week and is expected to remain fairly stable over the next week. Lac Seul authorized outflow is 400 m³/s with no changes scheduled.