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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 22 January 2026

Tonight and Friday.

Wind west 30 knots veering to northwest 25 near midnight then diminishing to north 15 Friday evening.

Flurries ending Friday afternoon. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray ending Friday evening.

Waves

Issued 06:30 PM EST 22 January 2026
Tonight and Friday. Over open water waves 2 to 3 metres subsiding to 2 late overnight and to 1 to 1.5 Friday evening.

Extended Forecast

Issued 06:30 PM EST 22 January 2026
Saturday Wind north 15 knots diminishing to light in the morning then becoming southeast 15 late in the day.
Sunday Wind southeast 15 knots.
Monday Wind northwest 20 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

Northern Georgian Bay

Issued 6:30 PM EST 22 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 22 January 2026 Tonight and Friday At 6:30 p.m. EST tonight departing low 1003 mb located southeast
of James Bay.

At 6:30 p.m. EST tonight trough located on a line
northeast-southwest over northeastern Ontario.
By 6:30 p.m. EST Friday trough located on a line east-west over
New York State.

At 6:30 p.m. EST tonight quasi-stationary ridge located on a line
northwest-southeast over Saskatchewan.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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