Listen: Warm Lake Superior (Kelleher) -4930
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MPR’s Bob Kelleher reports from the shore of Lake Superior, where the water has reached record high temperatures during the summer of 2010. Kelleher talks with officials on what is causing the warm water and its potential impact.

The all-time daily average high temperature record for Lake Superior is 71°F, which was recorded in mid-August 2010.

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