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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 14 January 2026

Today Tonight and Thursday.

Wind west 20 knots veering to north 20 this morning then increasing to north 25 near noon. Wind diminishing to north 15 Thursday afternoon.

Flurries this afternoon tonight and Thursday morning.

Freezing spray warning in effect.

Freezing spray beginning near noon and ending near noon Thursday. Risk of freezing spray early Thursday afternoon.

Waves

Issued 03:00 AM EST 14 January 2026
Today Tonight and Thursday. Waves 1 metre building to 2 to 3 near noon then subsiding to 1.5 near noon Thursday. Waves subsiding to 0.5 to 1 Thursday evening.

Extended Forecast

Issued 03:00 AM EST 14 January 2026
Friday Wind southwest 25 knots.
Saturday Wind north 15 knots.
Sunday Wind light becoming southwest 15 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
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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

Warnings (In effect)

Freezing spray warning in effect

Northern Georgian Bay

Issued 03:00 AM EST 14 January 2026

Moderate or severe freezing spray is occurring or expected to occur in this marine area. 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 EST 14 January 2026 Today Tonight and Thursday At 3:00 a.m. EST today low 986 mb located over western Quebec.
By 3:00 a.m. EST Thursday low 997 mb located over eastern Quebec.

At 3:00 a.m. EST today cold front located on a line
northeast-southwest over northeastern Ontario.
By 3:00 a.m. EST Thursday cold front located on a line
northeast-southwest over New York State.

At 3:00 a.m. EST today ridge located on a line north-south over
Manitoba.
By 3:00 a.m. EST Thursday ridge located on a line
northeast-southwest over western Lake Superior.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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