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Current Lake Conditions What's New | Great Lakes Observations Explorer | Weather | Beaches | Boating Safety/Security Advisories | Fishing Conditions Lock & Port Updates | Ice Conditions 
What's New
The Great Lakes Observations Explorer is a product developed by the Great Lakes Observing System (GLOS) in an effort dedicated to providing wide internet access to real-time and historic data on the hydrology, biology, chemistry, geology and cultural resources of the Great Lakes, its interconnecting waterways and the St. Lawrence River. GLOS is a regional node of the U.S. Integrated Ocean Observing System (IOOS) initiative.
Weather Recent Marine Data National Data Buoy Center, National Weather Service (NOAA) Real-time data from all US Moored Buoy Stations, Canadian Moored Buoy Stations and C-MAN Stations in Eastern / Western Great Lakes. Dial-a-Buoy phone service is also available. Great Lakes Air Temperatures NOAA Great Lakes Environmental Research Laboratory (GLERL) Real-time and forecasted Great Lakes weather maps with optional animation. Great Lakes Marine Text Forecasts by Zone Marine & Coastal Weather Services, National Weather Service (NOAA) Great Lakes open water marine forecasts in text format. (View NOAA's PDF Guide to Marine Weather Services for information on how to read text forecasts.) Great Lakes NOAAPORT Marine Observations CoastWatch Great Lakes Node, Great Lakes Environmental Reseach Laboratory (NOAA) Real-time weather observations from numerous Great Lakes sites. NEXRAD Doppler RADAR National Weather Service Access NWS's national network of doppler radar stations. Ontario Marine Map Environment Canada Ontario marine observations and forecasts. Recent Great Lakes Ship Observations CoastWatch Great Lakes Node, Great Lakes Environmental Research Laboratory (NOAA) Recent weather reports from ships traveling on the Great Lakes.
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 Contour Maps of the Great Lakes Michigan Sea Grant Marine observations, buoy data, water temperatures and more. NOAA CoastWatch Great Lakes Node NOAA/Great Lakes Environmental Research Laboratory (GLERL) The CoastWatch Great Lakes regional node obtains, produces, and delivers environmental data and products for near real-time monitoring of the Great Lakes to support environmental science, decision making, and supporting research. In addition, through a cooperative project with Michigan Sea Grant, Great Lakes CoastWatch satellite-derived surface temperature imagery is contoured and made available via Michigan State Sea Grant's web site.
Wave Heights Great Lakes Water Currents NOAA Great Lakes Environmental Research Laboratory (GLERL) Real-time and forecasted Great Lakes weather maps. Optional animated time loops.
Beaches 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.
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.
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 Great Lakes Ice Charts NOAA National Ice Center Access recent ice analyses for Eastern and Western Great Lakes.
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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