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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 11 June 2026

Today Tonight and Friday.

Strong wind warning in effect.

Wind southwest 10 knots backing to south 10 early this evening then to southeast 10 overnight. Wind increasing to southwest 20 Friday morning then veering to west 20 Friday afternoon. Wind diminishing to southwest 15 Friday evening.

Scattered showers ending near noon with a risk of thunderstorms. Scattered showers overnight and Friday with a risk of thunderstorms. Fog patches dissipating Friday afternoon.

Waves

Issued 03:00 AM EDT 11 June 2026
Today Tonight and Friday. Waves 0.5 metres or less building to 1 near noon Friday.

Extended Forecast

Issued 03:00 AM EDT 11 June 2026
Saturday Wind southwest 15 knots.
Sunday Wind west 15 knots diminishing to light.
Monday Wind west 15 knots.

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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 03:00 AM EDT 11 June 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 11 June 2026 Today Tonight and Friday At 3:00 a.m. EDT today quasi-stationary low 993 mb located over
northern Manitoba.

By 3:00 a.m. EDT Friday trough located on a line north-south over
Lake Superior.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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