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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 12 January 2026

Tonight and Tuesday.

Wind west 15 knots backing to southwest 15 late overnight then to south 20 Tuesday morning. Wind veering to west 25 Tuesday evening.

Scattered flurries changing to snow near noon Tuesday then to showers or scattered flurries Tuesday evening. Visibility 1 mile or less in snow.

Waves

Issued 06:30 PM EST 12 January 2026
Tonight and Tuesday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 this evening then building to 1.5 near noon Tuesday.

Extended Forecast

Issued 06:30 PM EST 12 January 2026
Wednesday Wind west 20 knots veering to north 25 in the morning.
Thursday Wind north 25 knots diminishing to light late in the day.
Friday Wind southwest 20 knots.

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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 6:30 PM EST 12 January 2026 Tonight and Tuesday At 6:30 p.m. EST tonight ridge located on a line north-south over
Lake Nipigon.
By 6:30 p.m. EST Tuesday ridge located on a line north-south over
Nova Scotia.

At 6:30 p.m. EST tonight low 993 mb located over northern Manitoba.
By 6:30 p.m. EST Tuesday low 988 mb located over northeastern
Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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