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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 14 January 2026

Today Tonight and Thursday.

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

Scattered showers changing to flurries this morning and ending Thursday afternoon. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Risk of freezing spray this afternoon. Freezing spray beginning early this evening 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 1.5 metres building to 2 to 3 early this evening 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 Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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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

Southern 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 Huron Area

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Marine Weather for Canada

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