Image caption
Map of satellite-based surface water temperatures across the Great Lakes. Temperatures span from 32 (dark purple) to 55 (yellow) degrees Fahrenheit. NOAA Climate.gov image based on data from NOAA's Great Lakes CoastWatch.
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Map of satellite-based surface water temperatures across the Great Lakes. Temperatures span from 32 (dark purple) to 55 (yellow) degrees Fahrenheit. NOAA Climate.gov image based on data from NOAA's Great Lakes CoastWatch.