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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 11 May 2025

Today Tonight and Monday.

Wind light becoming southeast 10 knots this evening then veering to south 10 late overnight. Wind becoming light Monday morning then becoming east 10 Monday evening.

Waves

Issued 10:30 AM EDT 11 May 2025
Today Tonight and Monday. Waves 0.5 metres or less subsiding to less than 0.5 near noon then building to 0.5 or less near midnight. Waves subsiding to less than 0.5 near noon Monday.

Extended Forecast

Issued 03:00 AM EDT 11 May 2025
Tuesday Wind light becoming southeast 15 knots late in the day.
Wednesday Wind southeast 15 knots diminishing to light late in the day.
Thursday Wind light becoming southeast 15 knots late in the day.

Ice Forecast*

Issued 12:00 PM EDT 11 May 2025 Today Tonight and Monday 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 11 May 2025 Today Tonight and Monday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 11 May 2025 Today Tonight and Monday At 10:30 a.m. EDT today high 1028 mb located over central Ontario.
By 10:30 a.m. EDT Monday departing high 1028 mb located over the
East Coast of the U.S.

At 10:30 a.m. EDT today quasi-stationary trough located on a line
east-west over northern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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