Data for your decisions.
Access all data via the data portal or web services, or choose a specialized tool for your application.
- Point observations (winds, waves, water temperature, water levels, air temperature, dissolved oxygen, streamflow, and turbidity)
- Satellite observations (base reflectivity including weather hazards, chlorophyll concentration, colored dissolved organic matter, dissolved organic carbon, natural color, suspended minerals, and water surface temperature)
- Model forecasts (currents, ice thickness, water level, waves, and winds)
- And more
The GLOS Data Portal provides access to near-realtime and archived observations and the ability to model forecasts for the Great Lakes. This includes lake conditions, water levels, wave heights, air and water temperatures and more. Receive updates from the station or buoy of your choice, and even download data from the site.
GLOS data services offer data discovery, data access, and data archival through widely adopted standardized protocols. In addition to viewing and downloading through our portal, users can access some data directly through our web services. Other data can be searched for and linked to thorough the metadata catalog.
The Huron to Erie Connecting Waterways Forecasting System provides predicted forecasts of water levels and currents through the Huron to Erie Corridor. The tool has varying applications, which include guiding spill response, search and rescue, beach health management, drinking water safety, and finding the source of fish kills, among others.
Data relating tributaries are important to assess the amount of nutrients loading into the Great Lakes. The Maumee River nutrient tracker is a tool for researchers to track these inputs. Heidelberg University collects water samples on the Maumee River at least daily near Waterville, Ohio and collects three samples a day during storm events.
Point Query Tool
Point Query Tool
The NOAA Great Lakes Coastal Forecasting System is a numerical model that calculates waves, currents and temperatures for each of the Great Lakes. The GLCFS Nowcast, run four times per day, provides estimates of conditions at the time the model was run. The GLCFS Forecast runs twice per day and provides a prediction of conditions 60 hours into the future.