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2022.06.03 Lake Level Forecasts

The current level of Lake of the Woods is 323.93 m (1062.8 ft), over 95th percentile level for this time of year. The average lake level rose by 11 cm (4 in) over past week. The lake level has risen 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 and no additional actions can be taken to limit lake level rise.

The level of Lake of the Woods is expected to rise by approximately 3-6 cm (1-2 in) over the next 7 days, the rate depending on the rainfall received across the region. Should weather be favourable, a peak may be reached by mid-June followed by a gradual drop. However, a return to normal summer levels will likely take many weeks, and will be delayed should there be a return to wet weather.

As the lake continues to rise, the outflow from the lake will very gradually rise. This should result in the level of the Winnipeg River between Kenora and Minaki also gradually rising, with any local precipitation adding temporarily to levels in this stretch of the river. The level rise over the next 7 days below Norman Dam and down to Minaki is expected to be 1-2 cm (1 in).

The current level of Lac Seul is 356.70 m (1170.3 ft), over 95th percentile level for this time of year. Lac Seul inflow is very high, resulting in a rise of 16 cm (6 in) over the past week. Lac Seul authorized outflow is 800 m³/s with no changes currently scheduled.

The main body of Lac Seul is expected to rise by 9-12 cm (4-5 in) over the next 7 days with the rate of rise slowing if drier weather lasts through the forecast period. The level at Hudson appear to be cresting and may begin to decline if the drier weather continues.

Manitoba Hydro has provided the following forecast information for the Winnipeg River in Manitoba.