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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 24 June 2025

Tonight and Wednesday.

Wind west 15 knots diminishing to northwest 10 late overnight then becoming light near noon Wednesday.

Scattered showers this evening with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 24 June 2025
Tonight and Wednesday. Waves 0.5 to 1 metre subsiding to 0.5 or less early Wednesday morning.

Extended Forecast

Issued 06:30 PM EDT 24 June 2025
Thursday Wind light becoming east 15 knots in the morning.
Friday Wind east 15 knots veering to south 15.
Saturday Wind light.

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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 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 24 June 2025 Tonight and Wednesday At 6:30 p.m. EDT tonight ridge located on a line north-south over
Lake Superior.
By 6:30 p.m. EDT Wednesday ridge from high located on a line
north-south over Sudbury.

At 6:30 p.m. EDT tonight departing cold front located on a line
northeast-southwest over New York State.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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