International Lake Superior Board of Control

The International Lake Superior Board of Control is responsible for regulating the outflow of Lake Superior and managing the control works on the St. Marys River.

News Release

Date

December 04, 2018

Following extremely wet conditions in October and relatively wet conditions in November, water levels of Lake Superior and Lake Michigan-Huron remain well above average.
News Release

Date

November 02, 2018

Extremely wet weather and a significant rise in Lake Superior levels will result in St. Marys River outflows being increased in November.
News Release

Date

October 03, 2018

During a relatively wet September, Lake Superior rose 4 cm while on average Lake Superior begins its seasonal decline in September. Conditions were closer to average downstream and Lake Michigan-Huron declined 6 cm in September.
News Release

Date

August 31, 2018

At the beginning of September, Lake Superior is 14 cm above average (1918 – 2017), but 11 cm below the level at this time last year. Lake Michigan-Huron is currently 43 cm above average, and at the same level as last year’s beginning-of-September level.

News Releases

Latest news on Lake Superior outflows and expected conditions

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Reports

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FAQs

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Water Levels Data

View the latest information on Great Lakes Water Levels and Forecasts

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Calendar

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International Lake Superior Board of Control

News Release

News Release

News Release

News Release

News Releases

Reports

FAQs

Water Levels Data

Calendar

Want to learn more about the flow control structures on the St. Marys River? View the Board's Story Map below

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