Our map will be the first comprehensive wetland delineation of the binational coastal Great Lakes, and will include adjacent land use and at least two invasive plant species: Typha spp. and Phragmites ...

As executive director of the Great Lakes Observing System, she’s leading a campaign to map every meter of the lakes’ bottom.

Data, maps, and reports are available at the lake-level (Great Lakes), for each state, and for the five-state region as a whole by clicking on the links below: Brief reports that summarize, analyze, ...

Parts of the Great Lakes that were already inundated with snow over the holiday weekend can expect another round of heavy snow as an "Alberta Clipper" impacts the area. A powerful cold front will ...

The Great Lakes' ice coverage was lagging behind average for much of the winter. Now, coverage is above average for some ...

The dip of Arctic air into the Midwest expanded ice coverage across all 5 Great Lakes, some seeing greater increases than ...

Welcome to Surfline Great Lakes Surf Reports and Surf Cams -- the most comprehensive Great Lakes surf reports and surf cams site on the Internet. Spend a few minutes browsing around our Great ...

Ice growth on the Great Lakes requires long spells of subfreezing temperatures like we’ve seen of late. The shallower lakes—Erie and Huron—are the first to build significant surface ice, with the ...