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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 09 May 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind south 10 knots increasing to south 15 early this morning then veering to west 15 early this evening. Wind increasing to west 20 near midnight then diminishing to west 15 Sunday morning.

Scattered showers today and this evening.

Waves

Issued 03:00 AM EDT 09 May 2026
Today Tonight and Sunday. Waves 0.5 metres or less building to 0.5 to 1 this morning and to 1 to 1.5 overnight. Waves subsiding to 0.5 to 1 Sunday morning.

Extended Forecast

Issued 03:00 AM EDT 09 May 2026
Monday Wind northwest 15 knots diminishing to light in the morning.
Tuesday Wind light.
Wednesday Wind northeast 15 knots diminishing to light late in the day.

Ice Forecast*

Issued 12:00 PM EDT 8 May 2026 Today Tonight and Saturday 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 8 May 2026 Today Tonight and Saturday

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Northern Georgian Bay

Issued 05:49 AM 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 3:00 AM EDT 9 May 2026 Today Tonight and Sunday At 3:00 a.m. EDT today trough from 994 mb low located on a line
north-south over Lake Nipigon.
By 3:00 a.m. EDT Sunday low 997 mb located over central Quebec.

At 3:00 a.m. EDT today ridge located on a line north-south over
western Saskatchewan.
By 3:00 a.m. EDT Sunday ridge located on a line north-south over
western Manitoba.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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