News Releases

Basin conditions were generally wetter than average in July. As a result, water levels rose on Lake Superior and remained stable on Lake Michigan-Huron.

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.

While conditions around Lake Superior were drier than average in May, conditions were again wetter than average on Lake Michigan-Huron, driven by a couple of significant rainfall events in the middle and at the end of the month.

Conditions across the Great Lakes were generally drier this past month and the water levels of both Lake Superior and Lake Michigan-Huron rose less than they typically do in April. Nonetheless, an exceptional volume of water remains in the system.

Wet conditions returned to the Great Lakes this past month and the water levels of both Lake Superior and Lake Michigan-Huron rose slightly more than they typically do in March.

Conditions across the Great Lakes were drier this past month and the water levels of both Lake Superior and Lake Michigan-Huron declined more than they typically do in February.

Lake Superior and Lake Michigan-Huron water levels are above record-highs for this time of year as wet conditions persisted across the upper Great Lakes basin in January.

Lake Superior and Lake Michigan-Huron remain near record-highs for this time of year, and although they are expected to continue their seasonal declines in January, levels are expected to remain high over the next several months and may again exceed record-highs if wet conditions continue in 2020.

Lake Superior and Lake Michigan-Huron remain near record-highs for this time of year, but are expected to continue their seasonal declines in December.

The Board expects the total outflow from Lake Superior to be 2,820 m3/s in November, which is as prescribed by Lake Superior Regulation Plan 2012. The gate setting will be lowered in stages beginning in late November to allow for a gradual reduction in St. Marys Rapids flows and water levels prior…