Great Lakes water levels fluctuated since 1860. Recently, water levels declined slightly for most Great Lakes, as the past few years show a notable increase toward the top of the historical range although Lake levels dropped 2 feet since 2020. Surface water temperatures since 1995, have increased slightly for each Great Lake by spring/summer warming. Water temperatures 1985–2009 show no warming trend with two Midwest exceptions.
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Elk Rapids, MI 49629
