LWCB Logo Lake of the Woods Control Board Notice Board


Issued:  2019.12.06

Normally issued weekly on Thursdays but may be issued more frequently or on other days depending on conditions.
 

 

Potentially dangerous river conditions exist along the Winnipeg River and English River due to high winter flows.

 


Due to high flows expected throughout the winter, swift currents may make areas along the English and Winnipeg rivers unsafe, including some areas that normally have reliable ice cover. There will also be areas of Lake of the Woods where much higher currents than normal may affect ice stability. The Board urges caution when on or near these waters over the winter.

The current level of Lake of the Woods is 323.14 m (1060.2 ft), which is greater than the 95th percentile level for this time of year. The level of Lake of the Woods declined by 5 cm (2 in) over the past week and is expected to decline by 6-7 cm (3 in) over the next week.

Lake of the Woods outflow is approximately 800 m³/s. No outflow changes are currently scheduled. This is the target outflow for the early winter. It is higher than normal for winter flow and is necessary to lower the level of Lake of the Woods over the winter to create storage room for the spring melt. A high lake level at the start the spring increases the risk of high water on both the lake and the river.

The current level of Lac Seul is 356.55 m (1169.8 ft), an 85th percentile level for this time of year. The average lake level declined by 2 cm (1 in) over the past week and is expected to decline by 1-3 cm (1 in) over the next week. Lac Seul outflow is 450 m³/s, with no changes scheduled.

Manitoba Hydro has provided the following level forecast for the Winnipeg River through the Whiteshell over the next week:

Nutimik Lake: rise by 5 cm (0.1 ft)

Dorothy Lake: rise by 4 cm (0.1 ft)

Margaet/Eleanor Lake: rise by 3 cm (0.1 ft)

Sylvia Lake: rise by 2 cm (0.1 ft)
 



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