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Notice regarding image quality

Coastwatch users:
The surface temperature profiles maps are not updating right now due to a server outage at NOAA, which delivers the primary satellite data used to create these maps. NOAA is in the process of restoring the system; the estimated time of restoration is not available currently. Our apologies for any inconvenience, and we will resume normal delivery of the imagery as soon as the data sources are operational again.

Lake Superior
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Lake Superior Regions
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Lake Superior Port Images
[Superior/Duluth] [Beaver Bay] [Grand Marais, Minnesota] [Ontonagon] [Washburn] [Isle Royale]
[Keweenaw Peninsula] [Keweenaw Bay] [Marquette] [Grand Marais, Michigan] [Whitefish Bay]

Regional and Port Image Map

Select a label to view region or port map.

Whitefish Bay Port Area Grand Marais Michigan Port Area Marquette Port Area Keweenaw Bay Port Area Keweenaw Peninsula Port Area Washburn Port Area Ontonagon Port Area Superior/Duluth Port Area Beaver Bay Port Area Grand Marais Minnesota Port Area Isle Royale Port Area Eastern Lake Superior Central Lake Superior Western Lake Superior
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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