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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 13 January 2026

Tonight and Wednesday.

Wind southwest 20 knots veering to west 20 near midnight then to north 20 Wednesday morning. Wind increasing to north 25 Wednesday evening.

Scattered flurries or scattered showers becoming scattered showers near midnight then flurries Wednesday morning. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Risk of freezing spray Wednesday afternoon. Freezing spray beginning Wednesday evening.

Waves

Issued 06:30 PM EST 13 January 2026
Tonight and Wednesday. Waves 0.5 to 1 metre building to 1.5 this evening and to 2 to 3 Wednesday evening.

Extended Forecast

Issued 06:30 PM EST 13 January 2026
Thursday Wind north 25 knots diminishing to northwest 15 in the afternoon and to light late in the day.
Friday Wind southwest 25 knots.
Saturday Wind north 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 6:30 PM EST 13 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 6:30 PM EST 13 January 2026 Tonight and Wednesday At 6:30 p.m. EST tonight low 987 mb located over northeastern
Ontario.
By 6:30 p.m. EST Wednesday low 994 mb located over eastern Quebec.

At 6:30 p.m. EST tonight cold front located on a line
northeast-southwest over Lake Superior.
By 6:30 p.m. EST Wednesday cold front located on a line
northeast-southwest over Montréal.

At 6:30 p.m. EST tonight ridge located on a line north-south
over Manitoba.
By 6:30 p.m. EST Wednesday ridge located on a line north-south
over Lake of the Woods.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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