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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 13 June 2026

Today Tonight and Sunday.

Wind southwest 10 knots increasing to southwest 15 this morning then diminishing to light near midnight. Wind becoming west 10 near noon Sunday then increasing to northwest 15 Sunday evening.

Showers Sunday morning changing to rain. Risk of thunderstorms Sunday.

Waves

Issued 03:00 AM EDT 13 June 2026
Today Tonight and Sunday. Waves 0.5 to 1 metre subsiding to 0.5 or less overnight.

Extended Forecast

Issued 03:00 AM EDT 13 June 2026
Monday Wind west 20 knots diminishing to light late in the day.
Tuesday Wind light.
Wednesday Wind light.

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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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land station Land Station
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 3:00 AM EDT 13 June 2026 Today Tonight and Sunday At 3:00 a.m. EDT today low 990 mb located over Hudson Bay.
By 3:00 a.m. EDT Sunday low 998 mb located over northeastern
Hudson Bay.

At 3:00 a.m. EDT today quasi-stationary trough located on a line
northwest-southeast over James Bay.

At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over Ohio.
By 3:00 a.m. EDT Sunday ridge located on a line northeast-southwest
over Pennsylvania.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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