THUNDER BAY — The level of Lake Superior remains well above normal but it is also well below its high-water mark of a year ago.
The International Lake Superior Board of Control reports that Superior was 18 centimetres (7.1 inches) higher than its long-term average (1918 to 2020) for this time of year at the beginning of April.
In April 2020, however, it was 18 centimetres (7.1 inches) higher than it currently is.
The board believes Superior is near its seasonal low point, and will soon begin its seasonal rise.
It says there continues to be an increased risk of shoreline erosion, especially during periods of strong wind and high waves.
The board plans to maintain the normal outflow from Lake Superior into the St. Mary's River through a control structure, as prescribed under an agreement between Canada and the United States.
