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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 24 January 2026

Tonight and Sunday.

Wind variable 10 knots increasing to southeast 15 late overnight and to southeast 25 early Sunday morning. Wind backing to east 25 near noon Sunday then to northeast 20 Sunday evening.

Flurries changing to snow near noon Sunday. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Risk of freezing spray near noon Sunday. Freezing spray beginning late Sunday afternoon.

Waves

Issued 06:30 PM EST 24 January 2026
Tonight and Sunday. Waves 0.5 metres or less building to 1 early Sunday morning and to 1.5 late Sunday morning. Waves building to 2 Sunday afternoon.

Extended Forecast

Issued 06:30 PM EST 24 January 2026
Monday Wind northeast 20 knots backing to northwest 20 in the afternoon.
Tuesday Wind southwest 30 knots.
Wednesday 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

Western Lake Ontario

Issued 6:30 PM EST 24 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 24 January 2026 Tonight and Sunday At 6:30 p.m. EST tonight ridge from 1042 mb high located over
Wisconsin to New York State.
By 6:30 p.m. EST Sunday ridge from 1040 mb high located on a line
east-west over northeastern Ontario.

At 6:30 p.m. EST tonight quasi-stationary low located over Lake
Superior.

By 6:30 p.m. EST Sunday approaching low 1003 mb located over
West Virginia.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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