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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 13 June 2026

Today Tonight and Sunday.

Wind southwest 10 knots increasing to southwest 15 near noon then diminishing to southwest 10 this evening. Wind veering to west 10 early Sunday morning then increasing to northwest 15 Sunday afternoon.

Scattered showers beginning near midnight changing to rain Sunday morning then to scattered showers Sunday afternoon. Risk of thunderstorms overnight and Sunday.

Waves

Issued 10:30 AM EDT 13 June 2026
Today Tonight and Sunday. Waves 0.5 metres or less.

Extended Forecast

Issued 03:00 AM EDT 13 June 2026
Monday Wind light.
Tuesday Wind light.
Wednesday Wind southwest 15 knots.

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

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

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 13 June 2026 Today Tonight and Sunday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over Lake Ontario.
By 10:30 a.m. EDT Sunday departing ridge located on a line
northeast-southwest over the East Coast of the U.S.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over Lake Superior.
By 10:30 a.m. EDT Sunday trough located on a line
northeast-southwest over southern Ontario.

At 10:30 a.m. EDT today low 995 mb located west of James Bay.
By 10:30 a.m. EDT Sunday low 995 mb located over eastern Hudson Bay.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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