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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 13 March 2026

Today Tonight and Saturday.

Gale warning in effect.

Wind light increasing to southeast 15 knots early this morning and to southeast 25 late this morning. Wind increasing to southeast 35 near noon then diminishing to northeast 30 early this evening. Wind backing to north 30 near midnight then to northwest 25 overnight. Wind diminishing to northwest 15 Saturday morning and to northwest 10 Saturday afternoon. Wind becoming light Saturday evening.

Snow today and tonight. Visibility 1 mile or less in snow.

Waves

Issued 03:00 AM EDT 13 March 2026
Today Tonight and Saturday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EDT 13 March 2026
Sunday Wind light increasing to southeast 15 knots in the morning and to east 35 in the afternoon.
Monday Wind southeast 30 knots increasing to southwest 35 late in the day.
Tuesday Wind southwest 35 knots veering to northwest 35.

Ice Forecast*

Issued 12:00 PM EDT 12 March 2026 Today Tonight and Friday 5 tenths thick lake ice. 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 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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land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 12 March 2026 Today Tonight and Friday

Ice Coverage

5 tenths thick lake ice. Consolidated thick lake ice along parts of
the shores.

Warnings

Warnings (In effect)

Gale warning in effect

Northern Georgian Bay

Issued 03:00 AM EDT 13 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 13 March 2026 Today Tonight and Saturday At 3:00 a.m. EDT today departing ridge located from James Bay
to Pennsylvania.

At 3:00 a.m. EDT today low 987 mb located over northern Minnesota.
By 3:00 a.m. EDT Saturday low 997 mb located over eastern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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