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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 13 May 2025

Today Tonight and Wednesday.

Wind east 10 knots increasing to southeast 15 early this evening then backing to east 15 Wednesday morning.

Scattered showers overnight and Wednesday. Fog patches forming overnight and dissipating near noon Wednesday.

Waves

Issued 10:30 AM EDT 13 May 2025
Today Tonight and Wednesday. Waves 0.5 metres or less building to 0.5 to 1 this evening.

Extended Forecast

Issued 03:00 AM EDT 13 May 2025
Thursday Wind light.
Friday Wind light.
Saturday Wind light becoming southwest 15 knots.

Ice Forecast*

Issued 12:00 PM EDT 13 May 2025 Today Tonight and Wednesday 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 13 May 2025 Today Tonight and Wednesday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 13 May 2025 Today Tonight and Wednesday At 10:30 a.m. EDT today departing ridge located on a line
north-south over Quebec.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over Manitoba.
By 10:30 a.m. EDT Wednesday trough located from Lake of the Woods
to James Bay.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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