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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 13 May 2025

Today Tonight and Wednesday.

Wind east 10 knots increasing to east 15 early this afternoon. Wind east 15 tonight and Wednesday.

Scattered showers this afternoon tonight and Wednesday morning. Scattered showers Wednesday late in the day. Fog patches forming early this evening.

Waves

Issued 10:30 AM EDT 13 May 2025
Today Tonight and Wednesday. Waves 0.5 metres building to 1 this afternoon.

Extended Forecast

Issued 03:00 AM EDT 13 May 2025
Thursday Wind light.
Friday Wind light.
Saturday Wind light becoming southwest 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 12 May 2025 Today Tonight and Tuesday 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 12 May 2025 Today Tonight and Tuesday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 13 May 2025 Today Tonight and Wednesday At 10:30 a.m. EDT today departing ridge located on a line
north-south over Quebec.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over Manitoba.
By 10:30 a.m. EDT Wednesday trough located from Lake of the Woods
to James Bay.

Great Lakes - Lake Huron Area

Another Region

Marine Weather for Canada

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