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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 16 January 2026

Tonight and Saturday.

Wind south 15 knots increasing to southwest 25 this evening then diminishing to southwest 15 early Saturday morning. Wind increasing to southwest 20 near noon Saturday and to southwest 30 Saturday evening.

Snow changing to scattered flurries after midnight. Visibility 1 mile or less in snow.

Waves

Issued 06:30 PM EST 16 January 2026
Tonight and Saturday. Waves 0.5 to 1 metre building to 1 to 1.5 near midnight then subsiding to 0.5 to 1 Saturday morning. Waves building to 1.5 Saturday afternoon.

Extended Forecast

Issued 06:30 PM EST 16 January 2026
Sunday Wind southwest 30 knots diminishing to southwest 20 in the afternoon.
Monday Wind southwest 25 knots increasing to southwest 35 late in the day.
Tuesday Wind southwest 30 knots.

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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 6:30 PM EST 16 January 2026 Tonight and Saturday At 6:30 p.m. EST tonight departing ridge located on a line
north-south over western Quebec.

At 6:30 p.m. EST tonight low 999 mb located over eastern Lake
Superior.
By 6:30 p.m. EST Saturday departing low 1008 mb located over
western Quebec.

By 6:30 p.m. EST Saturday approaching ridge located on a line
northeast-southwest over northern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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