Lake Superior, a Huge Natural Climate Change Gauge, Is Running a Fever - NYTimes.com
This year, the [surface water, in selected locations, maybe] in Lake Superior are on track to reach -- and potentially exceed -- the lake's record-high temperatures of 68 degrees Fahrenheit, which occurred in 1998.[Note that in an article published just 10 days ago, Austin was claiming that surface temperatures were 20, not 15, degrees warmer] - latimes.com
Analysis of several buoys that measure temperatures in the lake reveal that the waters are some 15 degrees warmer than they would normally be at this time of year, Jay Austin, a professor of physics at the University of Minnesota, Duluth's Large Lakes Observatory, said in a recent interview.
His analysis of National Oceanic and Atmospheric Administration data indicates that summer for the lake, which happens at about a 40-degree threshold, came about a month early this year.
...
"This year is just tremendously anomalous," he said. "This year ranks up there with the warmest water we have ever seen..."
"We would normally just be getting to turnover, to 39 degrees, about this time in July," Austin said. "But it happened so early this year that we're already at 59 degrees (at a western Lake Superior buoy near the Apostle Islands). That's 20 degrees warmer than we should be right now."[Note that when Lake Superior reaches 40 degrees in "summer", another 25 degrees of warming would still leave it "unbearably cold"]
Even for the most adventurous swimmers, 65° F is unbearably cold.
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