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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 11 February 2026

Today Tonight and Thursday.

Wind west 30 knots diminishing to northwest 20 early this evening and to northwest 15 near midnight. Wind northwest 15 Thursday.

Scattered flurries ending Thursday morning.

Waves

Issued 10:30 AM EST 11 February 2026
Today Tonight and Thursday. Over open water waves 1.5 metres subsiding to 0.5 to 1 late overnight.

Extended Forecast

Issued 03:00 AM EST 11 February 2026
Friday Wind light increasing to southwest 20 knots in the afternoon.
Saturday Wind west 15 knots diminishing to light.
Sunday 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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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 10:30 AM EST 11 February 2026 Today Tonight and Thursday At 10:30 a.m. EST today departing low 999 mb located south of
Nova Scotia.

At 10:30 a.m. EST today trough located on a line east-west over
northern Georgian Bay.
By 10:30 a.m. EST Thursday trough located on a line east-west over
southern Ontario.

At 10:30 a.m. EST today high 1027 mb located over northwestern
Ontario.
By 10:30 a.m. EST Thursday high 1029 mb located over Wisconsin.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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