2019-Jun-12
June 11th Water Levels Report
Above average precipitation continue to contribute to substantially high lake levels. Lakes Superior, St. Clair, Erie, and Ontario are projected to be 1 – 3 inches above their record high monthly average levels for June, but Lake Michigan-Huron is projected to be 2 inches below its record high. Lakes Superior and Michigan-Huron are 5 and 7 inches, respectively, above their levels of a month ago, while Lakes St. Clair, Erie, and Ontario are 2, 3, and 13 inches, respectively, higher than they were a month ago. Lakes Superior, Michigan-Huron, St. Clair, and Erie are 9 to 13 inches above their levels of a year ago, while Lake Ontario is 24 inches higher than it was at this time last year. Over the next 30 days, Lakes Superior and Michigan-Huron are expected to continue their seasonal rise, climbing 3 and 2 inches, respectively. Lake St. Clair, however, is predicted to be near its current level in one month’s time, while Lakes Erie and Ontario are expected to fall 2 and 4 inches, respectively.
Outflows from Lake Superior through the St. Mary’s River, and Lake Michigan-Huron’s outflow into the St. Clair River, are projected to be above average in June. Lake St. Clair’s outflow through the Detroit River is also forecasted to be above average.
High water levels are expected to persist for at least the next six months, so flood prone areas are expected to remain vulnerable.
