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  Historical Great Lakes-St. Lawrence Water Levels
General Resources | Related Resources
Levels Section: Current | Forecasted | Historical
Levels & Hydrology Section: Home | Levels | Hydrology | Flows

Collapsed structure on Lake Michigan in the early 1970s General Resources
Great Lakes Water Level Photo Gallery
GLERL / Great Lakes Sea Grant Extension Office
Geographically organized, this gallery features both current and historical coastal images and links to related water level updates.

Great Lakes Water Levels
NOAA, Great Lakes Environmental Research Laboratory (GLERL)
Includes historical hydrographs illustrating monthly water levels 1860-present, as well as information about the current situation and the year's outlook.

Historic Great Lakes Levels
U.S. Army Corps of Engineers (USACE), Detroit District
Use this page to produce a tabular or graphical report of historic average monthly water levels for a selected lake in the Great Lakes region over a specified time period.

Historical Great Lakes Water Level Data
NOAA, National Ocean Service
Provides water levels for each NOS station every six minutes.

Long-term Average, Maximum and Minimum Water Levels
U.S. Army Corps of Engineers (USACE), Detroit District
Depicts monthly long-term average, maximum and minimum water levels. Period of record is 1918-2003.

Previous Month's Daily Lake Averages
U.S. Army Corps of Engineers (USACE), Detroit District
Select current or 1-3 months previous to view a table depicting the month's daily lakewide average levels in feet or meters.

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).

Recent Monthly and Yearly Means
Department of Fisheries and Oceans, Marine Environmental Data Service
Provides recent monthly and yearly station averages.

St. Lawrence River Level Bulletin
U.S. Army Corps of Engineers (USACE), Buffalo District
Consists of graphs showing past, present and predicted monthly average water levels along the St. Lawrence River.

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Related Resources
GLIN: Great Lakes-St. Lawrence Water Flows
GLIN: Lake Levels Research in the Great Lakes Region

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CC Data This page was created under the guidance of the binational Coordinating Committee on Great Lakes Basic Hydraulic and Hydrologic Data. This symbol is used throughout the GLIN hydrology section to indicate data or references prepared under the auspices of the Coordinating Committee.


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Updated: December 13, 2017
Selected Photos: Copyright ©John and Ann Mahan
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