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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 07 June 2026

Today Tonight and Monday.

Wind northwest 15 knots backing to west 15 near noon then diminishing to light early this evening. Wind becoming northeast 10 overnight. Wind northeast 10 Monday.

Fog patches dissipating this morning. Fog patches forming overnight and dissipating near noon Monday.

Waves

Issued 03:00 AM EDT 07 June 2026
Today Tonight and Monday. Waves 0.5 to 1 metre subsiding to 0.5 or less this evening.

Extended Forecast

Issued 03:00 AM EDT 07 June 2026
Tuesday Wind southeast 15 knots diminishing to light in the morning.
Wednesday Wind south 15 knots.
Thursday Wind light.

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Map of Great Lakes - Lake Huron marine weather areas Wiarton Airport Western Islands Cove Island Goderich Lake Simcoe Regional Airport Vineland Station Parry Sound Harbour Sarnia Chris Hadfield Airport Tobermory Muskoka Airport Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Lagoon City Southeast Shoal Burlington Lift Bridge Welland-Pelham Windsor Airport Port Colborne Erieau Peterborough Municipal Airport CFB Trenton Toronto City Centre Airport Point Petre Oshawa Executive Airport Hamilton Munro Int'l Airport Point Pelee Cobourg Port Colborne - 45142 North Channel - 45154 Ajax - 45159 Lake Nipissing - 45152 Sault Ste. Marie Airport Killarney Lake Simcoe - 45151 Greater Sudbury Airport South Lake Huron - 45149 Lake St Clair - 45147 North Bay Airport South Georgian Bay - 45143 Gore Bay-Manitoulin Airport Grimsby - 45139 Georgian Bay - 45137 Great Duck Island Collingwood Kingston Airport Grenadier Island Brockville Prince Edward Point - 45135 Port Stanley - 45132
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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 3:00 AM EDT 7 June 2026 Today Tonight and Monday At 3:00 a.m. EDT today departing low 998 mb located over the Gulf
of St. Lawrence.

At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over northeastern Ontario.
By 3:00 a.m. EDT Monday ridge located on a line northeast-southwest
over southern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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