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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 11 April 2026

Today Tonight and Sunday.

Wind northwest 10 knots increasing to southwest 15 this afternoon then diminishing to variable 10 this evening. Wind becoming east 10 Sunday morning then increasing to east 15 Sunday afternoon. Wind diminishing to variable 10 Sunday evening.

Showers Sunday. Fog patches forming Sunday evening.

Waves

Issued 03:00 AM EDT 11 April 2026
Today Tonight and Sunday. Waves 0.5 metres or less building to 0.5 to 1 near noon Sunday.

Extended Forecast

Issued 03:00 AM EDT 11 April 2026
Monday Wind south 20 knots veering to southwest 25 in the afternoon then diminishing to southwest 15 late in the day.
Tuesday Wind light becoming southwest 15 knots late in the day.
Wednesday Wind light becoming east 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 10 April 2026 Today Tonight and Saturday Ice free.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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Weather Conditions

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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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land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 10 April 2026 Today Tonight and Saturday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 11 April 2026 Today Tonight and Sunday At 3:00 a.m. EDT today ridge located on a line north-south over
Michigan.
By 3:00 a.m. EDT Sunday ridge located on a line northeast-southwest
over eastern New York State.

At 3:00 a.m. EDT Sunday approaching trough located on a line
east-west over Upper Michigan.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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