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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 21 December 2024

Today Tonight and Sunday.

Wind north 20 knots diminishing to north 15 near noon and to northeast 10 near midnight. Wind veering to southeast 10 Sunday morning then increasing to south 20 Sunday evening.

Flurries ending near midnight. Scattered flurries Sunday evening.

Waves

Issued 03:00 AM EST 21 December 2024
Today Tonight and Sunday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 this afternoon and to 0.5 or less overnight. Waves building to 0.5 to 1 Sunday evening.

Extended Forecast

Issued 03:00 AM EST 21 December 2024
Monday Wind south 25 knots.
Tuesday Wind northeast 15 knots diminishing to light late in the day.
Wednesday Wind light.

Ice Forecast*

Issued 12:00 PM EST 20 December 2024 Today Tonight and Saturday Open water except 1 tenth thin lake ice along parts of the shores.

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

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

Ice Forecasts

Issued 12:00 PM EST 20 December 2024 Today Tonight and Saturday

Ice Coverage

Open water except 1 tenth thin lake ice along parts of the shores.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 21 December 2024 Today Tonight and Sunday At 3:00 a.m. EST today departing low 993 mb located southeast of
Nova Scotia.

At 3:00 a.m. EST today high 1038 mb located over northwestern
Ontario.
By 3:00 a.m. EST Sunday high 1036 mb located over Lower Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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