Water Levels and Flows
Lake St. Lawrence is the portion of the St. Lawrence River above the Moses-Saunders Dam that was made artificially wider and deeper when the dam was built.
The Public Advisory Group appointed by the International Joint Commission (IJC) to assist with finding potential improvements to the regulation of Lake Ontario outflows held its first meeting on June 30. The meeting was held online.
Basin conditions were generally near average or drier than average in June, around both Lake Superior and Lake Michigan-Huron. As a result, water levels did not rise as much as they typically do in June.
After a season of above average snowpack in the Kootenay Basin, inflows to Kootenay Lake peaked on May 31 at 114,600 cfs (3,240 cms). As of June 7, lake inflows were at 42,000 cfs (1,200 cms) and dropping.
An ongoing review of Plan 2014 and the regulation of Lake Ontario outflows will be informed by a diverse Public Advisory Group of people from Canada and the United States.
With flow of the Similkameen River declining since its recent peak on June 1, the backwater effect of the Similkameen River on the Okanogan River is decreasing. This allows for increased outflow from Osoyoos Lake and a corresponding drop in its level. Osoyoos Lake crested at 913.65 ft.