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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 16 September 2026

Today Tonight and Thursday.

Wind southwest 10 knots increasing to north 15 early this morning then diminishing to northeast 10 this evening. Wind backing to north 10 overnight. Wind north 10 Thursday.

Scattered showers overnight and Thursday morning.

Waves

Issued 03:00 AM EDT 16 September 2026
Today Tonight and Thursday. Waves 0.5 to 1 metre subsiding to 0.5 or less near midnight.

Extended Forecast

Issued 03:00 AM EDT 16 September 2026
Friday Wind north 15 knots.
Saturday Wind southeast 15 knots.
Sunday Wind east 15 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:
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 3:00 AM EDT 16 September 2026 Today Tonight and Thursday At 3:00 a.m. EDT today low 995 mb located over eastern Hudson Bay.
By 3:00 a.m. EDT Thursday departing low 991 mb located east of
Labrador.

At 3:00 a.m. EDT today weakening ridge from 1029 mb high located
on a line northeast-southwest over the East Coast of the U.S.
By 3:00 a.m. EDT Thursday merging ridge located from James Bay
to Pennsylvania.

At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over Manitoba.
By 3:00 a.m. EDT Thursday ridge located on a line
northeast-southwest over northeastern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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