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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 14 March 2026

Today Tonight and Sunday.

Wind west 25 knots diminishing to west 15 this afternoon and to north 10 early this evening. Wind increasing to northeast 15 near midnight and to east 25 early Sunday morning. Wind increasing to east 30 near noon Sunday then diminishing to southeast 15 Sunday evening.

Snow Sunday with a risk of freezing rain. Visibility as low as 1 mile in snow.

Waves

Issued 10:30 AM EDT 14 March 2026
Today Tonight and Sunday. Waves 3 to 4 metres subsiding to 2 near noon and to 1 early this evening. Waves becoming 0.5 to 1 late overnight building to 1.5 Sunday morning and to 2 to 3 Sunday afternoon.

Extended Forecast

Issued 03:00 AM EDT 14 March 2026
Monday Wind south 30 knots increasing to southwest 35 late in the day.
Tuesday Wind southwest 35 knots diminishing to northwest 25 late in the day.
Wednesday Wind northwest 20 knots backing to southwest 15.

Ice Forecast*

Issued 12:00 PM EDT 14 March 2026 Today Tonight and Sunday Open water.

*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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buoy Buoy
land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 14 March 2026 Today Tonight and Sunday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 14 March 2026 Today Tonight and Sunday At 10:30 a.m. EDT today departing low 1003 mb located over New
England.

At 10:30 a.m. EDT today ridge located on a line north-south over
Lake Superior.
By 10:30 a.m. EDT Sunday ridge located over Quebec.

By 10:30 a.m. EDT Sunday approaching warm front located from North
Dakota to Lake St. Clair.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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