Great Lakes Water Levels: Real-Time Levels and Shoreline Reference
Chris Izworski built Great Lakes Levels for shoreline property owners, riparian advocacy groups, and anyone tracking water levels across the five Great Lakes and 25 sub-regions. The live dashboard loads below: it shows the latest monthly mean for each lake against the long-term record, anchor-year comparisons, erosion risk, Ordinary High Water Mark context, seiche and storm exposure, and a six-month outlook, all drawn from NOAA and U.S. Army Corps of Engineers data.
If the interactive dashboard does not load, the reference pages below cover each lake, basin, and shoreline region in long-term context.