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Wet April leads to rising Lake Superior

The big lake is at its average level for May 1.

waves crashing into rocks
Waves crash into rocks on Lake Superior near the Duluth Shipping Pier. The level of Lake Superior now sits at its long-term average for May 1.
Dan Williamson / 2022 file / Duluth News Tribune
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DULUTH — The level of Lake Superior rose more than usual during a wet April and now sits at nearly its average level for the beginning of May, the International Lake Superior Board of Control reports.

The lake rose 5.5 inches in April, more than the usual 3.2 inches, and now sits 7.1 inches below the May 1 level in 2021.

Lake Superior generally rises from April to September and then drops through fall and winter. The big lake could rise up to 7.5 inches in May, hydrologists noted.

Lakes Michigan-Huron also rose more than usual in April and now sit 10.6 inches above average, 8.7 inches below the level at this time last year and 24.4 inches below the record for May 1 set in 2020.

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