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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 19 June 2025

Today Tonight and Friday.

Wind northwest 15 to 20 knots diminishing to northwest 10 near noon then becoming light early this evening. Wind becoming southwest 10 near midnight. Wind southwest 10 Friday.

Scattered showers. Risk of thunderstorms today and early this evening and Friday afternoon and evening.

Waves

Issued 10:30 AM EDT 19 June 2025
Today Tonight and Friday. Waves 0.5 to 1 metre subsiding to 0.5 or less this afternoon.

Extended Forecast

Issued 03:00 AM EDT 19 June 2025
Saturday Wind light.
Sunday Wind light.
Monday Wind light.

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

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

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

Warnings (Ended)

Strong wind warning ended

Lake St. Clair

Issued 10:30 AM EDT 19 June 2025
Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 19 June 2025 Today Tonight and Friday At 10:30 a.m. EDT today low 999 mb located over southern Georgian
Bay.
By 10:30 a.m. EDT Friday low 996 mb located over northern New
Brunswick.

At 10:30 a.m. EDT today ridge located on a line east-west over
northern Ontario.
By 10:30 a.m. EDT Friday ridge located on a line northeast-southwest
over northeastern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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