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Western Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 16 June 2025

Tonight and Tuesday.

Wind east 10 knots becoming light this evening then becoming southeast 10 Tuesday morning. Wind veering to south 10 Tuesday evening.

Scattered showers Tuesday late in the day with a risk of thunderstorms. Fog patches forming this evening.

Waves

Issued 06:30 PM EDT 16 June 2025
Tonight and Tuesday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 16 June 2025
Wednesday Wind south 15 knots diminishing to light in the morning.
Thursday Wind southwest 20 knots veering to northwest 15 late in the day.
Friday Wind northwest 15 knots diminishing to light.

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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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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 EDT 16 June 2025 Tonight and Tuesday At 6:30 p.m. EDT tonight departing ridge located on a line east-west
over New York State.

At 6:30 p.m. EDT tonight low 1007 mb located over western Minnesota.
By 6:30 p.m. EDT Tuesday low 995 mb located south of James Bay.

By 6:30 p.m. EDT Tuesday high 1011 mb located over South Dakota.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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