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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 14 March 2026

Today Tonight and Sunday.

Wind northwest 30 knots diminishing to northwest 20 this morning and to northwest 10 this afternoon. Wind becoming light this evening then increasing to southeast 15 overnight. Wind increasing to east 25 Sunday morning and to east 30 Sunday evening.

Snow early this morning changing to scattered flurries and ending near noon. Snow Sunday afternoon. Risk of freezing rain Sunday late in the day. Visibility 1 mile or less in snow.

Risk of freezing spray this morning.

Waves

Issued 03:00 AM EDT 14 March 2026
Today Tonight and Sunday. Over open water waves 2 metres subsiding to 1 near noon and to 0.5 or less early this evening. Waves building to 1 Sunday morning and to 2 near noon Sunday.

Extended Forecast

Issued 03:00 AM EDT 14 March 2026
Monday Wind southeast 30 knots diminishing to variable 20 in the afternoon then increasing to southwest 30 late in the day.
Tuesday Wind northwest 35 knots diminishing to northwest 20.
Wednesday Wind light becoming south 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 13 March 2026 Today Tonight and Saturday 1 tenth thick lake ice except 5 tenths thick lake ice in the northern section. Consolidated thick 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 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 13 March 2026 Today Tonight and Saturday

Ice Coverage

1 tenth thick lake ice except 5 tenths thick lake ice in the
northern section. Consolidated thick lake ice along parts of the
shores.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 14 March 2026 Today Tonight and Sunday At 3:00 a.m. EDT today low 997 mb located east of Georgian Bay.
By 3:00 a.m. EDT Sunday departing low 999 mb located northeast of
the Gulf of St. Lawrence.

At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over the Ontario - Manitoba border.
By 3:00 a.m. EDT Sunday ridge located on a line northwest-southeast
over eastern Ontario.

By 3:00 a.m. EDT Sunday approaching warm front located from South
Dakota to Michigan.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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