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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 19 February 2026

Today Tonight and Friday.

Wind northeast 15 knots veering to east 15 near midnight then increasing to east 20 Friday morning. Wind becoming southwest 20 Friday evening.

Periods of drizzle and fog patches beginning this evening changing to rain or snow Friday morning.

Waves

Issued 03:00 AM EST 19 February 2026
Today Tonight and Friday. Over open water waves 0.5 to 1 metre building to 1 to 1.5 near noon Friday.

Extended Forecast

Issued 03:00 AM EST 19 February 2026
Saturday Wind southwest 20 knots.
Sunday Wind northeast 15 knots.
Monday Wind northeast 15 knots backing to north 20.

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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 3:00 AM EST 19 February 2026 Today Tonight and Friday At 3:00 a.m. EST today quasi-stationary ridge located on a line
northwest-southeast over Hudson Bay.

At 3:00 a.m. EST today dissipating low 999 mb located over western
Wisconsin.

At 3:00 a.m. EST today low 992 mb located over eastern Colorado.
By 3:00 a.m. EST Friday low 994 mb located over northern Illinois.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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