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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 13 March 2026

Tonight and Saturday.

Gale warning in effect.

Wind southwest 30 knots increasing to southwest 35 this evening then veering to west 35 late overnight. Wind diminishing to west 25 Saturday morning and to west 15 Saturday afternoon. Wind diminishing to north 10 Saturday evening.

Showers becoming flurries or showers this evening and ending Saturday morning.

Waves

Issued 06:30 PM EDT 13 March 2026
Tonight and Saturday. Waves 2 metres building to 3 to 4 near midnight then subsiding to 2 near noon Saturday. Waves subsiding to 1 Saturday evening.

Extended Forecast

Issued 06:30 PM EDT 13 March 2026
Sunday Wind light increasing to east 25 knots in the afternoon then veering to south 30 late in the day.
Monday Wind southeast 25 knots increasing to southwest 35 late in the day.
Tuesday Wind southwest 35 knots diminishing to northwest 25 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 13 March 2026 Today Tonight and Saturday Open water.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 13 March 2026 Today Tonight and Saturday

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

Western Lake Ontario

Issued 6:30 PM EDT 13 March 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.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 13 March 2026 Tonight and Saturday At 6:30 p.m. EDT tonight low 993 mb located over northern Lake
Huron.
By 6:30 p.m. EDT Saturday low 999 mb located over eastern Nova
Scotia.

At 6:30 p.m. EDT tonight ridge located on a line north-south
over Manitoba.
By 6:30 p.m. EDT Saturday ridge located on a line
northwest-southeast over southern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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