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Notice regarding image quality

Coastwatch users:
Due to technical issues, this site is no longer able to produce updated surface water temperature contour maps. Please check back in July for more information about future resources.
Daily maps of observed surface temperatures can be found at these NOAA links:
Lake Superior:
Lake Michigan & Lake Huron:
Lake Erie:
Lake Ontario:

Lake Huron
[Full Lake View]

Lake Huron Regions
[Northern Region] [Central Region] [Southern Region]

Lake Huron Ports
[Rogers City] [Alpena] [Oscoda] [Saginaw Bay] [Harbor Beach] [Port Huron]

Regional and Port Image Map

Select a label to view region or port map.

Northern Region Central Region Souther Region Rogers City Port Area Alpena Port Area Oscoda Port Area Saginaw Bay Port Area Harbor Beach Port Area Port Huron Port Area
Most questions can be answered by your Sea Grant Agent or on our CoastWatch Help Pages. Please send comments or bug reports to Please include the name of the location or file that's giving you trouble, as well as the type of software you are running. This is a cooperative project between the NOAA CoastWatch Great Lakes Regional Node located at the NOAA Great Lakes Environmental Research Laboratory in Ann Arbor and the Sea Grant Network.
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