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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 06 September 2026

Today Tonight and Monday.

Wind northeast 10 knots increasing to north 15 this afternoon then diminishing to east 10 near midnight. Wind becoming variable 10 early Monday morning then becoming light near noon Monday.

Waves

Issued 10:30 AM EDT 06 September 2026
Today Tonight and Monday. Waves 0.5 metres building to 0.5 to 1 this afternoon then subsiding to 0.5 or less late overnight.

Extended Forecast

Issued 03:00 AM EDT 06 September 2026
Tuesday Wind light becoming south 15 knots in the afternoon.
Wednesday Wind south 20 knots veering to west 20 late in the day.
Thursday Wind west 20 knots.

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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
Legend:
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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 10:30 AM EDT 6 September 2026 Today Tonight and Monday At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over northern Ontario.
By 10:30 a.m. EDT Monday ridge located from Hudson Bay to Lake
Ontario.

At 10:30 a.m. EDT today low 1010 mb located over western South
Dakota.
By 10:30 a.m. EDT Monday low 1002 mb located over western North
Dakota.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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