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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 16 January 2026

Tonight and Saturday.

Wind south 15 knots increasing to south 20 near midnight then veering to southwest 15 near noon Saturday. Wind increasing to southwest 30 Saturday evening.

Snow changing to scattered flurries overnight. Visibility 1 mile or less in snow.

Waves

Issued 06:30 PM EST 16 January 2026
Tonight and Saturday. Waves 0.5 to 1 metre building to 1 to 1.5 late overnight then subsiding to 1 Saturday afternoon. Waves building to 2 to 3 Saturday evening.

Extended Forecast

Issued 06:30 PM EST 16 January 2026
Sunday Wind southwest 30 knots diminishing to southwest 20 in the afternoon.
Monday Wind southwest 25 knots increasing to southwest 35 late in the day.
Tuesday Wind southwest 30 knots.

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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
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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 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 16 January 2026 Tonight and Saturday At 6:30 p.m. EST tonight departing ridge located on a line
north-south over western Quebec.

At 6:30 p.m. EST tonight low 999 mb located over eastern Lake
Superior.
By 6:30 p.m. EST Saturday departing low 1008 mb located over
western Quebec.

By 6:30 p.m. EST Saturday approaching ridge located on a line
northeast-southwest over northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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