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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 12 June 2026

Tonight and Saturday.

Wind west 15 knots backing to southwest 15 Saturday morning.

Waves

Issued 06:30 PM EDT 12 June 2026
Tonight and Saturday. Waves 0.5 to 1 metre.

Extended Forecast

Issued 06:30 PM EDT 12 June 2026
Sunday Wind light becoming northwest 15 knots late in the day.
Monday Wind west 20 knots diminishing to light late in the day.
Tuesday 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 6:30 PM EDT 12 June 2026 Tonight and Saturday At 6:30 p.m. EDT tonight low 988 mb located over northeastern
Manitoba.
By 6:30 p.m. EDT Saturday low 999 mb located over Hudson Bay.

At 6:30 p.m. EDT tonight quasi-stationary trough located on a line
northwest-southeast over James Bay.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over Ohio.
By 6:30 p.m. EDT Saturday ridge located on a line
northeast-southwest over West Virginia.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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