Great Lakes Water Levels Shift Amid Unusual Weather Patterns

Record-high precipitation in the Great Lakes Basin has not raised water levels above January averages. Despite warmer weather and heavy rainfall, Lakes Superior and Michigan-Huron experienced declines. Stakeholders are advised to monitor changing conditions and navigational alerts closely, especially with ice formation impacts.

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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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Startling Canadian Studies Hint That Lake Michigan-Huron Water Levels Will Plummet Below Record by 2030

A more troubling part of the study’s forecast was that Lake Michigan-Huron is expected to decrease to 174.5 by 2030, only eight years away. This would make it 3.5 feet lower than the lows measured between 2000 and 2014. Such a drop may render some coastal ports and marinas inoperable, and it may be possible to walk to numerous islands on Lake Huron’s Georgian Bay and North Channel.

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