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Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 10 May 2026

Today Tonight and Monday.

Wind west 15 knots increasing to southwest 15 to 20 this afternoon then becoming west 15 this evening. Wind veering to northwest 15 late overnight then diminishing to northwest 10 Monday morning. Wind increasing to west 15 Monday afternoon.

Scattered showers this afternoon and this evening.

Waves

Issued 10:30 AM EDT 10 May 2026
Today Tonight and Monday. Waves 0.5 to 1 metre subsiding to 0.5 or less near noon Monday then building to 0.5 to 1 Monday evening.

Extended Forecast

Issued 03:00 AM EDT 10 May 2026
Tuesday Wind light.
Wednesday Wind southeast 20 knots backing to northeast 15 late in the day.
Thursday Wind north 15 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 10 May 2026 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 Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
Legend:
buoy Buoy
land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 10 May 2026 Today Tonight and Monday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 10 May 2026 Today Tonight and Monday At 10:30 a.m. EDT today weakening low 994 mb located over northern
Quebec.

At 10:30 a.m. EDT today ridge located on a line north-south over
Manitoba.
By 10:30 a.m. EDT Monday high 1026 mb located over Upper Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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