Persistent precipitation this spring has resulted in rising water levels throughout the Great Lakes-St. Lawrence River basin and flood conditions in many tributaries. Water levels in Lake Ontario have risen a total of 0.76 meters (2.50 feet) in two months.
Water Levels and Flows
On April 30, 2026, at 00:00 PDT, “the commencement of the spring rise” of Kootenay Lake began for purposes defined in the 1938 International Joint…
In 2018, the United States Army Corps of Engineers (USACE) developed a simple regulation model to estimate the levels of Osoyoos Lake based on inflow conditions and Zosel Dam operations.…
The gate setting of the Compensating Works at the head of the St. Marys Rapids will remain at the typical winter gate setting of one-half gate open (Gates #1 and #7 through #10 open 20 cm (8 in) each). The St. Marys Rapids flow will remain at approximately 84 cubic meters per second or 3,000 cubic…
Low water levels in Osoyoos Lake have exposed the shoreline. Credit: Town of Osoyoos.