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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 16 February 2026

Today Tonight and Tuesday.

Wind east 10 knots becoming light early this morning then becoming southwest 10 this afternoon. Wind increasing to southwest 15 near midnight then diminishing to west 10 Tuesday morning. Wind becoming light near noon Tuesday then becoming east 10 Tuesday evening.

Scattered showers tonight.

Waves

Issued 03:00 AM EST 16 February 2026
Today Tonight and Tuesday. Waves 0.5 metres or less building to 0.5 to 1 overnight then subsiding to 0.5 or less Tuesday morning.

Extended Forecast

Issued 03:00 AM EST 16 February 2026
Wednesday Wind east 20 knots.
Thursday Wind northeast 15 knots.
Friday Wind east 20 knots increasing to east 25.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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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 3:00 AM EST 16 February 2026 Today Tonight and Tuesday At 3:00 a.m. EST today trough located on a line northeast-southwest
over western Lake Superior.
By 3:00 a.m. EST Tuesday trough located on a line north-south over
southern Ontario.

At 3:00 a.m. EST today ridge located on a line northwest-southeast
over Saskatchewan.
By 3:00 a.m. EST Tuesday approaching ridge located on a line
northwest-southeast over Lake Superior.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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