Great Lakes Marine Weather

Marine Weather Service Chart



Lake Ontario

Open Lake Forecast - Lake Ontario

New York Shoreline (from East to West)


St. Lawrence River to Mexico Bay
Graphic or Text

Sodus Bay to Hamlin Beach
Graphic or Text

Mexico Bay to Sodus Bay
Graphic or Text

Hamlin Beach to the Niagara River
Graphic or Text

Canadian Shoreline (from West to East)


Western Lake Ontario
Niagara River to Cobourg, ON



Lake Erie

Open Lake Forecast - Lake Erie

New York Shoreline (from East to West)


Buffalo to Dunkirk
Graphic or Text

Dunkirk to Ripley
Graphic or Text

Pennsylvania Shoreline (from East to West)


Ripley, NY to Conneaut, OH - Graphic or Text

Ohio Shoreline (from East to West)


Conneaut to Geneva-on-the-Lake
Graphic or Text

Willowick to Avon Point
Graphic or Text

Vermillion to The Islands
Graphic or Text

Geneva-on-the-Lake to Willowick
Graphic or Text

Avon Point to Vermillion
Graphic or Text

The Islands to Reno Beach
Graphic or Text

Reno Beach to Maumee Bay - Graphic or Text

Michigan Shoreline (from South to North)


Maumee Bay to the Detroit River - Graphic or Text

Canadian Shoreline (from West to East)




Lake St. Clair

Michigan Shoreline


Open Lake Forecast - Lake St. Clair

Canadian Shoreline


Open Lake Forecast - Lake St. Clair



Lake Huron

Open Lake Forecast - Lake Huron

Michigan Shoreline (from South to North)


Port Huron to Port Sanilac
Graphic or Text

Harbor Beach to Port Austin
Graphic or Text

Port Austin to Alabaster (Outer Saginaw Bay)
Graphic or Text

Sturgeon Point to Presque Isle Light
Graphic or Text

5NM East of Mackinac Bridge to
the Straits of Mackinac - Graphic or Text

Port Sanilac to Harbor Beach
Graphic or Text

Pt. Au Gries to Bay Port (Inner Saginaw Bay)
Graphic or Text

Alabaster to Sturgeon Point
Graphic or Text

Presque Isle Light to 5NM East of
Mackinac Bridge - Graphic or Text

Straits of Mackinac to False Detour Channel
Graphic or Text

Canadian Shoreline (from North to South)


Southern Lake Huron
Oliphant, ON to Sarnia, ON

Georgian Bay
Killarney, ON to Collingwood, ON



Lake Michigan

Open Lake Forecast - Lake Michigan

Michigan Shoreline (Nearshore Forecasts from North to South)


5NM West of Mackinac Bridge to
Grand Traverse Light - Graphic or Text

Grand Traverse Light to Sleeping Bear Point
Graphic or Text

Point Betsie to Manistee
Graphic or Text

Pentwater to Whitehal
Graphic or Text

Grand Haven to Holland
Graphic or Text

South Haven to St. Joseph
Graphic or Text

Grand Traverse Bay
Graphic or Text

Sleeping Bear Point to Point Betsie
Graphic or Text

Manistee to Pentwater
Graphic or Text

Whitehall to Grand Haven
Graphic or Text

Holland to South Haven
Graphic or Text

St. Joseph to New Buffalo
Graphic or Text

New Buffalo to Michigan City, IN
Graphic or Text

Indiana Shoreline (Nearshore Forecasts from East to West)


Michigan City to Burns Harbor
Graphic or Text

Burns Harbor to Gary
Graphic or Text

Gary to Calumet Harbor, IL
Graphic or Text

Illinois Shoreline (Nearshore Forecasts from South to North)


Calumet Harbor to Northerly Island
Graphic or Text

Northerly Island to Wilmette Harbor
Graphic or Text

Wilmette Harbor to Winthrope Harbor
Graphic or Text

Wisconsin Shoreline (Nearshore Forecasts from South to North)


Winthrope Harbor, IL to Wind Point, WI
Graphic or Text

North Point Light to Port Washington
Graphic or Text

Sheboygan to Two Rivers
Graphic or Text

Sturgeon Bay to Rock Island Passage
Graphic or Text

Green Bay (North of Little Sturgeon Bay to
Rock Island Passage) - Graphic or Text

Wind Point to North Point Light
Graphic or Text

Port Washington to Sheboygan
Graphic or Text

Two Rivers to Sturgeon Bay
Graphic or Text

Green Bay (South of Little Sturgeon Bay
to Oconto) - Graphic or Text

Green Bay (North of Rock Island Passage)
Graphic or Text

Rock Island Passage to Fairport, MI
Graphic or Text

Michigan Shoreline (Nearshore Forecasts from West to East)


Point Detour to Seul Choix Point - Graphic or Text

Seul Choix Point to 5NM West of Mackinac Bridge - Graphic or Text



Lake Superior

Lake Superior - Open Lake Forecast - Text

Michigan Shoreline (Nearshore Forecasts from East to West)


Point Iroquois Light to Whitefish Point
Graphic or Text

Grand Marais to Munising
Graphic or Text

Marquette to the Huron Islands
Graphic or Text

Portage Canal (Lower Entrance)
to Point Isabelle - Graphic or Text

Manitou Island to Eagle River
Graphic or Text

Portage Canal (Upper Entrance)
to Ontonagon - Graphic or Text

Whitefish Point to Grand Marais
Graphic or Text

Munising to Marquette
Graphic or Text

Huron Islands to Portage Canal
(Lower Entrance) - Graphic or Text

Point Isabelle to Manitou Island
Graphic or Text

Eagle River to Portage Canal
(Upper Entrance) - Graphic or Text

Ontonagon to the Black River
Graphic or Text

Black River to Saxon Harbor, WI
Graphic or Text

Wisconsin Shoreline (Nearshore Forecasts from East to West)


Saxon Harbor to Oak Point - Graphic or Text

Bayfield to Sand Island - Graphic or Text

Oak Point to Bayfield - Graphic or Text

Sand Island to Port Wing - Graphic or Text

Port Wing to Duluth, MN - Graphic or Text

Minnesota Shoreline (Nearshore Forecasts from West to East)


Duluth to Two Harbors
Graphic or Text

Silver Bay Harbor to Taconite Harbor
Graphic or Text

Two Harbors to Silver Bay Harbor
Graphic or Text

Taconite Harbor to Grand Marais
Graphic or Text

Grand Marais to Grand Portage
Graphic or Text

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