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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 26 April 2025

Today Tonight and Sunday.

Wind southwest 10 knots increasing to west 25 near noon then veering to northwest 20 this evening. Wind diminishing to northwest 15 Sunday morning and to northwest 10 Sunday evening.

Scattered showers ending near midnight.

Waves

Issued 10:30 AM EDT 26 April 2025
Today Tonight and Sunday. Waves 0.5 metres or less building to 1.5 this afternoon then subsiding to 1 near midnight. Waves subsiding to 0.5 or less Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 26 April 2025
Monday Wind light.
Tuesday Wind south 15 knots increasing to southwest 25 late in the day.
Wednesday Wind southwest 25 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 26 April 2025 Today Tonight and Sunday Open water.

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

 

[ Canadian Ice Service ]

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

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

Ice Forecasts

Issued 12:00 PM EDT 26 April 2025 Today Tonight and Sunday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 26 April 2025 Today Tonight and Sunday At 10:30 a.m. EDT today low 1005 mb located over northern New
York State.
By 10:30 a.m. EDT Sunday departing low 1002 mb located over
southern Maine.

At 10:30 a.m. EDT today high 1030 mb located over Duluth.
By 10:30 a.m. EDT Sunday high 1028 mb located over Windsor.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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