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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 23 June 2025

Today Tonight and Tuesday.

Wind southwest 10 knots increasing to southwest 15 this afternoon then diminishing to southwest 10 this evening. Wind becoming light Tuesday morning then becoming north 10 Tuesday afternoon. Wind becoming light Tuesday evening.

Scattered showers Tuesday with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 23 June 2025
Today Tonight and Tuesday. Waves 0.5 metres or less.

Extended Forecast

Issued 03:00 AM EDT 23 June 2025
Wednesday Wind light.
Thursday Wind light.
Friday Wind light.

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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 23 June 2025 Today Tonight and Tuesday At 3:00 a.m. EDT today quasi-stationary ridge located on a line
northeast-southwest over the Eastern Seaboard.

At 3:00 a.m. EDT today low 1002 mb located over northwestern
Ontario.
By 3:00 a.m. EDT Tuesday low 1001 mb located over central Quebec.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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