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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 09 May 2025

Today Tonight and Saturday.

Wind variable 10 knots becoming southwest 10 this afternoon then increasing to northwest 15 this evening. Wind diminishing to west 10 late overnight then increasing to southwest 15 Saturday morning. Wind diminishing to north 10 Saturday evening.

Waves

Issued 10:30 AM EDT 09 May 2025
Today Tonight and Saturday. Waves 0.5 metres building to 0.5 to 1 Saturday afternoon.

Extended Forecast

Issued 03:00 AM EDT 09 May 2025
Sunday Wind north 15 knots diminishing to light in the morning.
Monday Wind light.
Tuesday Wind light.

Ice Forecast*

Issued 12:00 PM EDT 9 May 2025 Today Tonight and Saturday Ice free.

*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 Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 9 May 2025 Today Tonight and Saturday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 9 May 2025 Today Tonight and Saturday At 10:30 a.m. EDT today ridge located on a line northeast-southwest
over northeastern Ontario.
By 10:30 a.m. EDT Saturday ridge located on a line
northeast-southwest over southern Ontario.

At 10:30 a.m. EDT today cold front located on a line
northeast-southwest over northwestern Ontario.
By 10:30 a.m. EDT Saturday cold front located on a line
northeast-southwest over northeastern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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