Also: Lake St. Clair
Also: St. Lawrence River
Facts & Figures
Also: Lake St. Clair
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Current Lake Superior Conditions
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Lake Superior level still above average Duluth News Tribune (9/2) Lake Superior remained at about the same level in August, a month the lake usually rises about one-half inch, according to the International Lake Superior Board of Control. Proposed hog megafarm causes stir in northern Wisconsin Darien N ews (7/28) A proposed hog "megafarm" in northern Wisconsin is raising concerns among some residents that millions of gallons of pig manure will eventually wash off the land and pollute Lake Superior. What European demand for caviar means for a Great Lakes fish Michigan Radio (7/28) Scientists say a key fish in Lake Superior’s food web is now in trouble due to mild winters and an appetite for caviar in Europe. Sitting next to vast Lake Superior, Duluth tells everyone to limit water use Star Tribune (7/15) Nestled on the hilly shoreline of one of the world’s largest freshwater lakes, the city of Duluth is asking residents and businesses to conserve water until Thursday night.
Lake Superior pressured by climate change, invasive species Circle of Blue (7/10) Warming water temperatures and destructive, non-native species threaten the world’s largest lake by surface area. Lake Superior 3.5 degrees warmer than last year WDIO (7/7) Weather officials say water temperatures in the Great Lakes are higher than at the same time a year ago.
Great Lakes Observations Explorer
Click to view real-time and historic lake conditions; water levels, wave heights, air and water temperatures and more from the station or buoy of your choice.
Developed by the
Great Lakes Observing System (GLOS), a regional node of the U.S. Integrated Ocean Observing System (IOOS) initiative.
Lake Superior Experimental Marine Forecasts National Weather Service
Lake Superior Marine Weather National Weather Service
Lake Superior Open Water Text Forecast National Weather Service
Real-Time Water Levels
Superior | St.
Marys River | Lake
Michigan | Lake
Huron | St.
Clair | Detroit
River | Lake
Erie | Niagara
River | Lake
Ontario | St.
Lake Superior Surface Water Temperatures Michigan Sea Grant Contour maps of surface water temps. This site uses satellite imagery from the Great Lakes CoastWatch Node to "build" a composite map of surface temps.
Lake Superior Temperature Profiles NOAA Great Lakes Environmental Research Laboratory (GLERL)
Lake Superior Temperature Transects NOAA Great Lakes Environmental Research Laboratory (GLERL)
Lake Superior Water Temperatures NOAA Great Lakes Environmental Research Laboratory (GLERL)
Beach Health Wisconsin Great Lakes Beaches Beach Health allows access to information on Great Lakes beaches in Wisconsin.
Great Lakes BeachCast Great Lakes Information Network An Internet gateway to information on Great Lakes beach conditions, including health advisories, weather, monitoring data and more.
Michigan Department of Environmental Quality – Online Beach Monitoring System Michigan Department of Environmental Quality To search for a beach or other location, enter any part of the beach name or waterbody name into the search box on the top of this page and click "GO".
Minnesota Lake Superior Beach Monitoring Program Minnesota Pollution Control Agency Information about swimming beach monitoring efforts, beach advisories, and fecal coliform and E. coli test results. Information updated daily in PDF format.
Boating Safety/Security Advisories
Information for U.S. and Canadian Cross-Border Boaters U.S. Coast Guard Ninth District Information and requirements for U.S. and Canadian recreational boaters planning cross-border travel on the Great Lakes.
Ninth Coast Guard District Public Information Site U.S. Coast Guard Ninth District News on active Coast Guard searches and rescues.
Requirements for Foreign Recreational Boaters In Canadian Waters Canadian Coast Guard, Office of Boating Safety Information on boating safety and environmental protection regulations in Canadian Waters.
What American Boaters Need to Know When Entering Canada U.S. Coast Guard, Office of Boating Safety Important contact information and guidelines for boaters entering Canadian Waters.
Michigan Recreational Fishing Report Michigan Department of Natural Resources (DNR) Comprehensive Michigan fishing report covering Lake Michigan, Lake Superior, Lake Huron, Lake St. Clair, and Lake Erie fisheries.
Let's Fish Ontario! Ontario Ministry of Natural Resources Ontario fishing information and resources.
Minnesota North Shore Fishing Report (DNR) Minnesota Department of Natural Resources Weekly fishing report covering angling from Duluth to Hovland.
Lock & Port Updates
Great Lakes St. Lawrence Seaway System : Customer Advisories Great Lakes St. Lawrence Seaway System Updates and advisories for Great Lakes locks and canals.
Soo Locks PORTS Data Products Center for Oceanographic Operational Products and Services (NOAA) The Physical Oceanographic Real-Time System (PORTS®) is a program of the National Ocean Service that provides ship masters and pilots with accurate real-time information required to avoid groundings and collisions.
Western Great Lakes Ice Analysis NOAA National Ice Center
GLIN: Agencies and Organizations, Weather
GLIN: Climate Change in the Great Lakes Region
GLIN: Great Lakes-St. Lawrence Hydrology
GLIN: Great Lakes-St. Lawrence Water Flows
GLIN: Great Lakes-St. Lawrence Water Levels