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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 17 April 2025

Today Tonight and Friday.

Wind west 10 knots becoming variable 10 early this evening then becoming south 10 near midnight. Wind backing to southeast 10 early Friday morning then increasing to southwest 15 Friday afternoon.

Showers Friday afternoon and evening.

Waves

Issued 10:30 AM EDT 17 April 2025
Today Tonight and Friday. Waves 0.5 metres or less building to 0.5 to 1 Friday evening.

Extended Forecast

Issued 03:00 AM EDT 17 April 2025
Saturday Wind southwest 20 knots.
Sunday Wind northwest 15 knots diminishing to light.
Monday Wind light increasing to east 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 17 April 2025 Today Tonight and Friday Ice free.

*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 17 April 2025 Today Tonight and Friday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 17 April 2025 Today Tonight and Friday At 10:30 a.m. EDT today ridge located on a line north-south over
Toronto.
By 10:30 a.m. EDT Friday ridge located on a line north-south
over Maine.

At 10:30 a.m. EDT today trough located from Nebraska to the Ontario
- Manitoba border.
By 10:30 a.m. EDT Friday trough located on a line
northeast-southwest over Lake Superior.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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