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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 07:15 PM EDT 29 April 2025

Tonight and Wednesday.

Wind southwest 30 knots veering to northwest 25 this evening then diminishing to northwest 15 late overnight. Wind diminishing to variable 10 Wednesday morning then becoming east 10 Wednesday evening.

Scattered showers this evening with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 29 April 2025
Tonight and Wednesday. Waves 2 metres subsiding to 1 early Wednesday morning and to 0.5 or less near noon Wednesday.

Extended Forecast

Issued 06:30 PM EDT 29 April 2025
Thursday Wind light increasing to east 20 knots in the afternoon.
Friday Wind light increasing to southwest 30 knots late in the day.
Saturday Wind west 20 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 29 April 2025 Today Tonight and Wednesday 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 29 April 2025 Today Tonight and Wednesday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 29 April 2025 Tonight and Wednesday At 6:30 p.m. EDT tonight low 997 mb located over southern Quebec.
By 6:30 p.m. EDT Wednesday departing low 990 mb located northeast
of Prince Edward Island.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over northwestern Ontario.
By 6:30 p.m. EDT Wednesday ridge located on a line
northeast-southwest over Lake Huron.

By 6:30 p.m. EDT Wednesday trough located on a line
northeast-southwest over the Ontario - Manitoba border.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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