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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 08 August 2026

Tonight and Sunday.

Wind northwest 10 knots backing to southwest 10 late overnight then increasing to southwest 15 Sunday morning. Wind diminishing to south 10 Sunday afternoon then increasing to southwest 15 Sunday evening.

Waves

Issued 06:30 PM EDT 08 August 2026
Tonight and Sunday. Waves 0.5 to 1 metre subsiding to 0.5 or less this evening then building to 0.5 to 1 near noon Sunday. Waves subsiding to 0.5 or less Sunday evening.

Extended Forecast

Issued 06:30 PM EDT 08 August 2026
Monday Wind southwest 15 knots veering to northwest 15 in the afternoon.
Tuesday Wind light.
Wednesday Wind light.

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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:
buoy Buoy
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 8 August 2026 Tonight and Sunday At 6:30 p.m. EDT tonight cold front located on a line
northeast-southwest over southern Ontario.
By 6:30 p.m. EDT Sunday departing cold front located over
northeastern Quebec.

At 6:30 p.m. EDT tonight ridge located on a line northwest-southeast
over Minnesota.
By 6:30 p.m. EDT Sunday ridge from high located on a line
north-south over southern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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