Water Levels and Flows
The International Rainy-Lake of the Woods Watershed Board (IRLWWB) Water Levels Committee (WLC) will host a follow-up virtual information session on Thursday May 8, 2025, at 12:00 p.m. CDT.
The International Kootenay Lake Board of Control, after consultation with FortisBC, the operator of the Corra Linn Dam, has determined that “the commencement of the spring rise,” for purposes defined in the 1938 International Joint Commission Order…
The gate setting of the Compensating Works will be maintained at the typical winter gate setting (Gate #1 and Gates #7 through #10 open 20 cm each) equivalent to approximately one-half gate open. The average St. Marys Rapids flow in April is expected to be approximately 85 cubic meters per second (…
Water levels in each of the Great Lakes, except for Lake Erie, are currently below long-term monthly averages. Actual spring and summer water levels will depend primarily on weather and water supplies during the spring and summer months.
Water levels in each of the Great Lakes, except for Lake Erie, are currently below long-term monthly averages. Actual spring and summer water levels will depend primarily on weather and water supplies during the spring and summer months.
Water levels in each of the Great Lakes, except for Lake Erie, are currently below long-term monthly averages. Actual spring and summer water levels will depend primarily on weather and water supplies during the spring and summer months.
The International Rainy-Lake of the Woods Watershed Board (IRLWWB)’s Water Levels Committee (WLC) established an initial spring regulation plan for Rainy and Namakan Lakes on March 10, 2025.
The Board expects the total St. Marys River flow in March to be 1,610 cubic meters per second (56,900 cfs), as prescribed by Regulation Plan 2012. Actual hour-to-hour and day-to-day flows may vary depending on hydrologic conditions, as well as variations in flow from the hydropower plants.