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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 22 May 2026

Tonight and Saturday.

Strong wind warning in effect.

Wind north 10 knots increasing to east 15 this evening and to east 20 early Saturday morning. Wind veering to southeast 20 near noon Saturday.

Rain Saturday afternoon and evening.

Waves

Issued 06:30 PM EDT 22 May 2026
Tonight and Saturday. Waves 0.5 metres or less building to 0.5 to 1 near midnight and to 1 to 1.5 Saturday morning.

Extended Forecast

Issued 06:30 PM EDT 22 May 2026
Sunday Wind southeast 20 knots diminishing to light in the afternoon.
Monday Wind light.
Tuesday Wind light becoming southwest 15 knots late in the day.

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

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

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 6:30 PM EDT 22 May 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 22 May 2026 Tonight and Saturday At 6:30 p.m. EDT tonight ridge located on a line north-south over
western Quebec.
By 6:30 p.m. EDT Saturday ridge located on a line
northwest-southeast over Maine.

At 6:30 p.m. EDT tonight low 1008 mb located over southwestern
Kentucky.
By 6:30 p.m. EDT Saturday low 1012 mb located near Lake St. Clair.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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