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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 09 May 2026

Tonight and Sunday.

Strong wind warning in effect.

Wind west 15 knots increasing to northwest 20 this evening then diminishing to northwest 15 late overnight. Wind backing to west 15 near noon Sunday.

Scattered showers this evening with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 09 May 2026
Tonight and Sunday. Waves 0.5 to 1 metre building to 1 to 1.5 near midnight then subsiding to 0.5 to 1 early Sunday morning.

Extended Forecast

Issued 06:30 PM EDT 09 May 2026
Monday Wind northwest 15 knots diminishing to light in the morning then becoming west 15 in the afternoon.
Tuesday Wind light.
Wednesday Wind southeast 20 knots backing to northeast 15 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 9 May 2026 Today Tonight and Sunday 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
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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 9 May 2026 Today Tonight and Sunday

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Southern Georgian Bay

Issued 9:42 PM EDT 09 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 9 May 2026 Tonight and Sunday At 6:30 p.m. EDT tonight trough from 998 mb low located on a line
north-south over northeastern Ontario.
By 6:30 p.m. EDT Sunday low 999 mb located over central Quebec.

At 6:30 p.m. EDT tonight ridge located on a line north-south
over Saskatchewan.
By 6:30 p.m. EDT Sunday ridge located on a line north-south over
the Ontario - Manitoba border.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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