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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 01 April 2025

Today Tonight and Wednesday.

Wind northwest 15 knots diminishing to northwest 10 near noon then increasing to northeast 15 this evening. Wind veering to east 20 near midnight then increasing to east 30 Wednesday morning.

Showers or scattered thunderstorms Wednesday afternoon and evening.

Waves

Issued 03:00 AM EDT 01 April 2025
Today Tonight and Wednesday. Waves 0.5 to 1 metre subsiding to 0.5 or less this afternoon then building to 0.5 to 1 near midnight. Waves building to 1.5 overnight and to 2 to 3 Wednesday morning.

Extended Forecast

Issued 03:00 AM EDT 01 April 2025
Thursday Wind southwest 25 knots diminishing to west 15 late in the day.
Friday Wind light becoming west 15 knots.
Saturday Wind light.

Ice Forecast*

Issued 12:00 PM EDT 31 March 2025 Today Tonight and Tuesday 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 Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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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 31 March 2025 Today Tonight and Tuesday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 1 April 2025 Today Tonight and Wednesday At 3:00 a.m. EDT today ridge located on a line north-south over
Lake Superior.
By 3:00 a.m. EDT Wednesday ridge located on a line north-south
over western Quebec.

At 3:00 a.m. EDT today low 997 mb located over Colorado.
By 3:00 a.m. EDT Wednesday low 984 mb located over Nebraska.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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