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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 10 July 2025

Tonight and Friday.

Wind west 10 knots becoming light this evening. Wind light Friday.

Scattered showers this evening with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 10 July 2025
Tonight and Friday. Waves 0.5 metres or less subsiding to less than 0.5 near midnight.

Extended Forecast

Issued 06:30 PM EDT 10 July 2025
Saturday Wind light.
Sunday Wind light.
Monday 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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land station Land Station
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 6:30 PM EDT 10 July 2025 Tonight and Friday At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over northeastern Ontario.
By 6:30 p.m. EDT Friday ridge located on a line northeast-southwest
over northern Lake Huron.

At 6:30 p.m. EDT tonight trough located on a line north-south over
the Ontario - Manitoba border.
By 6:30 p.m. EDT Friday trough located on a line northeast-southwest
over northern Ontario.

Great Lakes - Lake Huron Area

Another Region

Marine Weather for Canada

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