Great Lakes Nearshore Observations Network

Access real-time observations from buoys and monitoring stations in the Great Lakes regions

Click on a buoy to view details and data.
Great Lakes Nearshore Buoy Network - Marine Engineering Laboratory at GLRC
Most Recent Observations
Station ID Title Location Owner Timestamp
45020Grand Traverse Bay South Buoy 09/03/2017 14:402.34.3WSW73.85368.20.35.9Up
45196Rocky River 06/14/2024 11:304.96.3N68.58668.50.91.9Up
45194MCGULPIN POINT NORTH, MI 08/11/2023 10:450.
45197Euclid 06/14/2024 11:404.86.4NNE68.58268.90.91.9Up
45176Cleveland Intake Crib Cleveland, Ohio 06/14/2024 11:205.76.2NNE68.28368.60.92.1Up
uwraeon1U. Windsor RAEON Buoy 02/24/2020 10:001.12.7SSW35.600.00.09.2Up
uwraeon2U. Windsor RAEON Buoy 10/10/2019 11:400.20.7E63.1060.20.08.2Up
uwraeon3U. Windsor RAEON Buoy 01/16/2020 11:401.11.4NNW67.6064.50.06.5Up
45165Toledo Water Intake Oregon, OH LimnoTech06/14/2024 11:404.35.3N69.6070.21.22.6Up
45169Cleveland Wind Buoy Cleveland LimnoTech11/08/2020 17:302.74.3ESE58.5059.60.46.9Up
45164Cleveland DO Buoy Cleveland LimnoTech06/14/2024 11:003.23.8NNE66.9066.20.31.8Up
crib Lake Erie LimnoTech06/14/2024 10:596.27.469.08269.70.00.0Up
lsps Lake Erie LimnoTech06/14/2024 11:
GLRCMETGLRC Waterfront Meteorological Station Houghton MTU-GLRC06/13/2024 20:004.75.2W64.1560.00.00.0Up
UMBIOUniversity of Michigan Biological Station Douglas Lake UM-CILER03/08/2018 15:500.00.1E58.72754.10.00.0Up
45161Muskegon Buoy Muskegon GLERL11/07/2017 11:003.05.0N43.9053.20.00.0Up
45170Illinois-Indiana Sea Grant Buoy Michigan City IISG06/14/2024 11:401.32.1WSW65.1064.60.52.2Up
45174Wilmette Weather Buoy Wilmette IISG06/14/2024 11:405.67.7NNW64.49262.81.12.2Up
45026Buoy 45026 Bridgman LimnoTech06/14/2024 11:400.51.7NW65.38166.30.72.3Up
45029Port Sheldon Buoy Port Sheldon LimnoTech06/14/2024 11:503.34.4NNE66.67460.90.41.5Up
45168South Haven Buoy South Haven LimnoTech06/14/2024 11:403.04.3NW66.18864.20.42.2Up
45175Mackinac Straits West Mackinaw City, MI MTU-GLRC06/14/2024 11:403.10.0WSW57.6900.00.63.2Up
45007South Michigan Buoy South Michigan NOAA-NDBC11/30/2017 08:5011.014.0W43.5041.40.70.0Up
45002North Michigan Buoy North Michigan NOAA-NDBC11/28/2017 00:503.04.0N46.8045.00.30.0Up
45022Little Traverse Bay Buoy Little Traverse Bay UM-CILER05/06/2018 21:400.00.0N70.23371.60.17.9Up
45024Ludington Buoy Ludington UM-CILER11/27/2017 13:000.62.8SSE43.77546.31.64.7Up
45023North Entry Buoy North Keweenaw Peninsula MTU-GLRC06/14/2024 11:402.60.0NNE49.68750.90.63.3Up
45173Munising Buoy Munising NMU10/20/2020 15:005.80.0N38.7045.10.00.0Up
45171Granite Island Buoy Granite Island NMU07/08/2018 12:500.30.0N86.
45172Grand Marais Buoy Grand Marais NMU10/13/2020 22:206.40.0SW49.1053.64.77.0Up

The Upper – Great Lakes Observing System (UGLOS) is a unique public – private partnership between Michigan Universities, private sector entities' and First Nations to provide coastal observations throughout the harsh and expansive Upper Great Lakes. The new Great Lakes Research Center of Michigan Technological University (Michigan Tech), on the deep water Keweenaw Waterway connecting Western and Central Lake Superior now leads the UGLOS effort. The partner entities include Michigan Tech, the Michigan Tech Research Institute (MTRI), the University of Michigan, Northwestern Michigan College, LimnoTech Inc. and, potentially, others in the future. Private Sector entities include coastal municipalities whose economy depends upon up to date and accurate meteorological and oceanographic information, municipal drinking water intakes, private coastal and water quality consulting firms, Nuclear Power generation facilities, commercial boating interests, Native Communities and Government agencies (NOAA, United States Coast Guard, US Army Corps of Engineers, National Data Buoy Center and the National Park Service to name a few).

This network of observing stations continues to grow annually, due primarily to increased public and commercial interests. The original, Coastal Monitoring Buoy (CMB) technology was developed by the Ocean Engineering Laboratory (OEL) of the University of Michigan (now part of Michigan Tech) and was transferred to a Michigan yacht building company, S2 Yachts of Holland, Michigan. S2 has produced and improved upon, the original University design and now produces a rouged, robust and affordable coastal monitoring buoy that meets all new IOOS (Integrated Ocean Observing System) standards for directional wave sensing, the TIDAS 900.

The UGLOS network presently consists of five CMBs in Lake Michigan, one at the University of Michigan’s Biological Station (supported by NSF) and two buoys in Lake Superior (with a third being added later this year). All eight of these CMBs report all meteorological and oceanographic parameters to a this web site ( as well as to NDBC and the Great Lakes Observing System (GLOS) every 10 minutes throughout the navigation season. Ten minute reporting is required within the coastal regions of the Great Lakes due to the extremely rapid changes, which occur in these waters.

Great Lakes Research Center
    1400 Townsend Drive
    Houghton, MI, 49931
Page last modified: August 9, 2017



Michigan Tech University, in cooperation with LimnoTech and Great Lakes Observing System

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