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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 08 February 2026

Tonight and Monday.

Wind northwest 15 knots diminishing to north 10 near midnight then becoming light early Monday morning.

Waves

Issued 06:30 PM EST 08 February 2026
Tonight and Monday. Over open water waves 0.5 to 1 metre subsiding to 0.5 or less late overnight.

Extended Forecast

Issued 06:30 PM EST 08 February 2026
Tuesday Wind light becoming southeast 15 knots in the morning then becoming west 15 late in the day.
Wednesday Wind northwest 20 knots.
Thursday Wind northwest 15 knots diminishing to light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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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 8 February 2026 Tonight and Monday At 6:30 p.m. EST tonight ridge located on a line north-south over
Georgian Bay.
By 6:30 p.m. EST Monday ridge located on a line north-south over
eastern Lake Ontario.

At 6:30 p.m. EST tonight low 1002 mb located over eastern
Saskatchewan.
By 6:30 p.m. EST Monday low 1006 mb located over northwestern
Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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