https://www.mlive.com/weather/2025/08/great-lakes-seiche-piles-up-billions-of-gallons-of-water-near-chicago.html
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One-tenth of 800 billion gallons is 80 billion gallons in one inch of water. The water is about six inches higher right now at Calumet Harbor. This means there could be as much as 480 billion gallons of water piled up in the southwest corner of Lake Michigan, just doing simple math...."
