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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 16 May 2026

Today Tonight and Sunday.

Wind southwest 10 knots increasing to southwest 15 this afternoon then diminishing to southwest 10 near midnight. Wind veering to west 10 early Sunday morning then becoming light Sunday afternoon.

Scattered showers this afternoon and this evening with a risk of thunderstorms. Fog patches forming near midnight and dissipating near noon Sunday.

Waves

Issued 10:30 AM EDT 16 May 2026
Today Tonight and Sunday. Waves 0.5 metres or less building to 0.5 to 1 early this evening then subsiding to 0.5 or less Sunday morning.

Extended Forecast

Issued 03:00 AM EDT 16 May 2026
Monday Wind light becoming southwest 15 knots late in the day.
Tuesday Wind southwest 15 knots.
Wednesday Wind southwest 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 16 May 2026 Today Tonight and Sunday Ice free.These are the last forecasts for the season.

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

 

[ Canadian Ice Service ]

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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 2026 Today Tonight and Sunday

Ice Coverage

Ice free.

These are the last forecasts for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 16 May 2026 Today Tonight and Sunday At 10:30 a.m. EDT today low 986 mb located over eastern Hudson Bay.
By 10:30 a.m. EDT Sunday departing low 988 mb located over northern
Quebec.

At 10:30 a.m. EDT today ridge located on a line north-south over
Saskatchewan.
By 10:30 a.m. EDT Sunday ridge located on a line northwest-southeast
over northern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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