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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 23 May 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind east 15 knots increasing to southeast 20 early this morning and to southeast 25 near noon. Wind diminishing to southwest 15 near noon Sunday and to southwest 10 Sunday evening.

Rain beginning near noon changing to scattered showers Sunday morning. Fog patches forming near noon Sunday.

Waves

Issued 03:00 AM EDT 23 May 2026
Today Tonight and Sunday. Waves 0.5 to 1 metre building to 1 to 1.5 this morning then subsiding to 0.5 to 1 Sunday afternoon. Waves subsiding to 0.5 Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 23 May 2026
Monday Wind light.
Tuesday Wind light becoming southwest 15 knots late in the day.
Wednesday Wind west 15 knots diminishing to light.

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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 23 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 3:00 AM EDT 23 May 2026 Today Tonight and Sunday At 3:00 a.m. EDT today ridge located on a line north-south over
western Quebec.
By 3:00 a.m. EDT Sunday ridge located on a line northwest-southeast
over Maine.

At 3:00 a.m. EDT today low 1011 mb located over southern Indiana.
By 3:00 a.m. EDT Sunday low 1014 mb located over Lake Huron.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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