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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 19 January 2026

Tonight and Tuesday.

Gale warning in effect.

Wind west 45 knots diminishing to west 35 near midnight then backing to southwest 35 late overnight. Wind diminishing to southwest 30 early Tuesday morning.

Flurries. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray.

Waves

Issued 06:30 PM EST 19 January 2026
Tonight and Tuesday. Waves 3 to 4 metres subsiding to 3 Tuesday morning.

Extended Forecast

Issued 06:30 PM EST 19 January 2026
Wednesday Wind southwest 25 knots.
Thursday Wind southwest 30 knots.
Friday Wind west 25 knots increasing to west 30.

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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)

Gale warning in effect

Eastern Lake Ontario

Issued 6:30 PM EST 19 January 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Freezing spray warning in effect

Eastern Lake Ontario

Issued 6:30 PM EST 19 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 19 January 2026 Tonight and Tuesday At 6:30 p.m. EST tonight low 1000 mb located over central Quebec.
By 6:30 p.m. EST Tuesday departing low 995 mb located over eastern
Labrador.

At 6:30 p.m. EST tonight ridge located from Missouri to
Saskatchewan.
By 6:30 p.m. EST Tuesday high 1037 mb located over West Virginia.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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