As of November 1, 2023, the Rule Curve for maximum and minimum Osoyoos Lake levels has changed for the winter period, allowing lake levels to be maintained between 909.0 feet and 911.5 feet until March 1, 2024 (Figure 1).
Water Levels and Flows
On September 1, 2023, the International Joint Commission (IJC) Rule Curve for Kootenay Lake level switched to using the Queens Bay gauge at elevation 1745.32 feet for compliance measurements. The Rule Curve lowers prior to September 1 to allow farmers in the Kootenai Flats region to work their…
As fall colors emerged, Commissioners and board members met in Ottawa, Ontario, for the IJC’s Semi-Annual Meeting.
The gate setting of the Compensating Works at the head of the St. Marys Rapids will be lowered in November to a setting equivalent to approximately one gate fully open. After the gate adjustments on Monday, November 6 (U.S. gates) and Tuesday, November 7 (Canadian gates), the St. Marys Rapids flow…
The International Lake Ontario-St. Lawrence River Board is providing this notice to summarize the water level conditions from September 2023 through the remainder of Autumn.
The International Rainy-Lake of the Woods Watershed Board is mandated to recommend objectives for boundary waters, to select and establish alert levels, identify potential problems for boundary waters, and to report on exceedances of these and trends of water quality and aquatic ecosystem health…
- Historical water level decisions (prior to November 21, 2023)
- Water levels data
- Flooding and drought conditions
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The International Rainy-Lake of the Woods Watershed Board (IRLWWB) Water Levels Committee (WLC) released its 2022 Post-Flood Report: A Report on High Water Levels in the Rainy River Basin.