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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 08 June 2026

Tonight and Tuesday.

Wind northeast 10 knots becoming light near midnight. Wind light Tuesday.

Scattered showers Tuesday evening with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 08 June 2026
Tonight and Tuesday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 08 June 2026
Wednesday Wind light becoming southeast 15 knots in the morning then diminishing to light in the afternoon.
Thursday Wind light.
Friday Wind light becoming west 15 knots.

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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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land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 8 June 2026 Tonight and Tuesday At 6:30 p.m. EDT tonight high 1026 mb located over the East Coast
of the U.S.
By 6:30 p.m. EDT Tuesday high 1026 mb located off the East Coast
of the U.S.

At 6:30 p.m. EDT tonight weakening trough located on a line
north-south over northwestern Ontario.

By 6:30 p.m. EDT Tuesday approaching low 1010 mb located over
Lower Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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