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Lake Superior Still at Near-Record High, But Dropping

Lake Superior Still at Near-Record High, But Dropping Photo: Kevin Johnson/WDIO-TV

Created: December 10, 2019 04:31 PM

Lake Superior remains near a record high but has begun its typical seasonal decline, according to the International Lake Superior Board of Control.

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The board says that at the beginning of December, the lake was 13 inches (33 cm) above the 100-year average and 3.5 inches (9 cm) below the all-time high reached in 1985.

"As a result, there will continue to be a significantly increased risk of shoreline erosion, lakeshore flooding and coastal damages over the next several weeks and potentially through the winter," the board wrote in a news release.

Lake Superior declined about 3 inches (8 cm) during November, which is slightly more than its usual decline for the month.  The lake level typically declines in the winter and rises in the summer.

The board said it has received approval from the International Joint Commission to allow slightly more water than planned to flow out of Lake Superior over the winter.  However, the board said the additional outflow will have minimal impact on water levels.

Copyright 2019 WDIO-TV LLC, a Hubbard Broadcasting Company. All rights reserved

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