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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 11 October 2026

Tonight and Monday.

Wind southeast 10 knots veering to south 10 this evening then increasing to southwest 15 late overnight. Wind diminishing to south 10 Monday afternoon then increasing to southwest 15 Monday evening except northeast 15 near the north end.

Waves

Issued 06:30 PM EDT 11 October 2026
Tonight and Monday. Waves 0.5 metres or less building to 0.5 to 1 early Monday morning then subsiding to 0.5 or less late Monday afternoon.

Extended Forecast

Issued 06:30 PM EDT 11 October 2026
Tuesday Wind northeast 15 knots increasing to northeast 20 in the afternoon.
Wednesday Wind north 15 knots backing to northwest 20.
Thursday Wind northeast 15 knots veering to southeast 15.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Hamilton Munro Int'l Airport CFB Trenton Erieau Toronto City Centre Airport Point Pelee Peterborough Municipal Airport Burlington Lift Bridge Point Petre Cobourg Oshawa Executive Airport South Lake Huron - 45149 Port Colborne Brockville 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 Windsor Airport Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Welland-Pelham Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Sarnia Chris Hadfield Airport Vineland Station Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Tobermory
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land station Land Station
Ice Conditions

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

Ice Forecasts

Lake Huron

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

Ice Forecasts

Lake Michigan

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 11 October 2026 Tonight and Monday At 6:30 p.m. EDT tonight Post-tropical Storm Isaias 1009 mb located
over Virginia.
By 6:30 p.m. EDT Monday departing low 995 mb located east of
Nova Scotia.

At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over northeastern Ontario.
By 6:30 p.m. EDT Monday trough located on a line east-west over
northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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