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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
Beach hazard in effect for Chicago area beaches
WWLS - TV Chicago (7/1)
With the holiday weekend approaching, the National Weather Service is warning residents to stay out of the water at Chicago area beaches.

Holiday weekend starts with another dangerous swimming day on Lake Michigan
MLive (6/30)
Another cold front coming through tonight means another day of stiff north-northwest winds on Lake Michigan. The strong winds out of the north-northwest will build the waves through the day Friday, producing dangerous swimming conditions.

VIDEO: Bacteria levels prompt water advisories along Lake Erie
WTVG - Toledo, OH (6/19)
The advisory means tests show an increase in bacteria in the water. It is higher than normal and that could cause some problems.

All Great Lakes warmer than last year, 2 are much warmer
M Live (5/25)
All of the Great Lakes currently have average surface water temperatures warmer than this time last year. Two of those Great Lakes are significantly warmer than last year.

Coast Guard warns of unstable ice on Lake Superior
KDAL - Duluth, MN (3/7)
With the warm weather over the weekend and more on the way this week, the U-S Coast Guard is urging people to use extreme caution when venturing onto the remaining ice on Lake Superior.

Minimal ice cover could spell trouble for Great Lakes
Traverse City Record-Eagle (2/4)
Little ice cover over the Great Lakes could put whitefish spawning habitat on the rocks, as whitefish spawning beds need stable ice cover to protect them from winter storms.

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Great Lakes Observations Explorer
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:

Great Lakes Observations Explorer

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.

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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.

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.

Surface Weather Forecast
The Weather Underground
Enter a city, state, zip code or station code for the current National Weather Service forecast
Examples: "Albany", "NY", "Albany, NY", "12233", or "ALB"

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These maps were prepared in partnership with the National Oceanic & Atmospheric Administration (NOAA) and its Center for Operational Oceanographic Products and Services (CO-OPS).

NOAA Logo - Link to NOAA Website
Coordinating Committee Logo - Link to CC Website

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

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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.

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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.

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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.

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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.

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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.

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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.

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Ice Conditions
Great Lakes Ice Charts
NOAA National Ice Center
Access recent ice analyses for Eastern and Western Great Lakes.

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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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Great Lakes Information Network
Updated: November 22, 2017
Selected Photos: Copyright ©John and Ann Mahan
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