What's New New hints for Duluth's harbor rust mystery Minnesota Public Radio (5/12) Lake Superior's low water last year revealed something disturbing -- gaping rusted holes in much of the underwater steel in the Duluth-Superior harbor.
Government officials get input on Great Lakes levels study The Chicago Tribune (5/4) A $15 million study funded by the International Joint Commission is examining whether actions are needed to help stabilize water levels in lakes Superior, Michigan and Huron.
General Resources Current Month's Daily Lake Averages U.S. Army Corps of Engineers (USACE), Detroit District This page displays tabular average Great Lakes water level data for the past four months. You can view the information in feet or meters.
Great Lakes Water Level Data National Oceanic and Atmospheric Administration (NOAA) Provides preliminary water levels for each NOS station every six minutes. Elevations are in meters IGLD.
Hourly Station Levels Department of Fisheries and Oceans (DFO), Canadian Hydrographic Service CHS gauging stations' hourly water levels data and graphs for the past and current month. Elevation in meters above chart datum, referenced to IGLD (1985). Data are provisional.
Recent and Forecasted Water Levels on the Great Lakes Department of Fisheries and Oceans (DFO), Canadian Hydrographic Service Includes average monthly water levels for the previous year and the current year to date. Period of record is 1918-1996. Elevations are in meters referred to chart datum and IGLD (1985).
Tides and Water Levels Department of Fisheries and Oceans (DFO), Marine Environmental Data Service Provides last daily and latest weekly averages. Elevations are in meters IGLD.