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Lake St. Clair


Marine Forecast

Issued 10:30 AM EDT 17 September 2021

Today Tonight and Saturday.

Wind south 10 knots veering to southwest 10 this evening then increasing to north 15 early Saturday morning. Wind diminishing to north 10 near noon Saturday.


Issued 10:30 AM EDT 17 September 2021
Today Tonight and Saturday. Waves one half metre or less.

Extended Forecast

Issued 03:00 AM EDT 17 September 2021
Sunday Wind light.
Monday Wind light.
Tuesday Wind south 15 knots.

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Weather Conditions

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 9 May 2021 Forecasts have ended for the season.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 10:30 AM EDT 17 September 2021 Today Tonight and Saturday At 10:30 a.m. EDT today cold front located on a line
northeast-southwest over eastern Lake Superior.
By 10:30 a.m. EDT Saturday departing cold front located near
Lake Ontario.

By 10:30 a.m. EDT Saturday quasi-stationary high 1025 mb located
over Lake Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

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