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Great LakesLake Erie Lake Huron Lake Michigan Lake Ontario Lake Superior Also: Lake St. Clair Also: St. Lawrence River Lake Facts & Figures Lake Conditions Lake Erie Lake Huron Lake Michigan Lake Ontario Lake Superior Also: Lake St. Clair States and Provinces Illinois Indiana Michigan Minnesota New York Ohio Ontario Pennsylvania Québec Wisconsin Current Issues Great Lakes Restoration Levels and Hydrology Fish Advisories Water Quantity/Use References Agencies & Organizations Circle Tour Lake Facts & Figures Islands Lakewide Management Plans
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Current Lake Superior Conditions What's New | Weather | Water Levels | Water Temperatures Beaches | Boating Safety/Security Advisories | Fishing Conditions Lock & Port Updates | Ice Conditions 
Weather 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
Lake Superior | St. Marys River | Lake Michigan | Lake Huron | St. Clair River Lake St. Clair | Detroit River | Lake Erie | Niagara River | Lake Ontario | St. Lawrence
Water Temperatures 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)
Beaches 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.
Fishing Conditions 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.
Ice Conditions Western Great Lakes Ice Analysis NOAA National Ice Center
Related Resources 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
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