Great Lakes Water Levels Continue Seasonal Decline Amid Warmer-Than-Average Weather

As October ends, Great Lakes water levels are below long-term averages due to warm temperatures and persistent dry weather. Lakes Michigan-Huron, Superior, and Ontario are 4 to 8 inches below historical averages, while Erie and St. Clair are slightly above. Forecasts predict further declines into November, affecting navigation and regional ecosystems.

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