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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 17 January 2026

Today Tonight and Sunday.

Wind southwest 25 knots diminishing to northwest 15 this evening and to light early Sunday morning. Wind becoming variable 10 Sunday afternoon then increasing to southwest 25 Sunday evening.

Scattered flurries changing to snow Sunday evening. Visibility 1 mile or less in precipitation.

Risk of freezing spray Sunday evening.

Waves

Issued 10:30 AM EST 17 January 2026
Today Tonight and Sunday. Over open water waves 1 to 1.5 metres subsiding to 0.5 to 1 this evening and to 0.5 or less Sunday morning. Waves building to 1 to 1.5 Sunday evening.

Extended Forecast

Issued 03:00 AM EST 17 January 2026
Monday Wind southwest 25 knots increasing to northwest 35 in the afternoon then diminishing to northwest 25 late in the day.
Tuesday Wind northwest 20 knots.
Wednesday Wind southwest 20 knots veering to northwest 20 late in the day.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Burlington Lift Bridge Oshawa Executive Airport Point Pelee Peterborough Municipal Airport Point Petre Hamilton Munro Int'l Airport Erieau Cobourg Toronto City Centre Airport Port Colborne CFB Trenton South Lake Huron - 45149 Windsor Airport Great Duck Island Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Welland-Pelham Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Vineland Station Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Cove Island Goderich Sarnia Chris Hadfield Airport Western Islands Tobermory Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal
Legend:
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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 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 17 January 2026 Today Tonight and Sunday At 10:30 a.m. EST today departing ridge located on a line
northwest-southeast over central Quebec.

At 10:30 a.m. EST today low 1006 mb located over northern Lake
Huron.
By 10:30 a.m. EST Sunday departing low 1008 mb located over
central Quebec.

At 10:30 a.m. EST today ridge located on a line northeast-southwest
over Manitoba.
By 10:30 a.m. EST Sunday ridge located on a line northeast-southwest
over northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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