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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 09 March 2026

Today Tonight and Tuesday.

Wind southwest 25 knots diminishing to northwest 15 early this evening and to northeast 10 near midnight. Wind increasing to northeast 15 Tuesday morning and to northeast 20 near noon Tuesday. Wind increasing to northeast 25 Tuesday evening.

Scattered showers ending this morning. Scattered showers Tuesday.

Waves

Issued 03:00 AM EDT 09 March 2026
Today Tonight and Tuesday. Over open water waves 1.5 metres subsiding to 0.5 to 1 this evening then building to 1 to 1.5 Tuesday afternoon.

Extended Forecast

Issued 03:00 AM EDT 09 March 2026
Wednesday Wind northeast 25 knots backing to northwest 30 late in the day.
Thursday Wind northwest 30 knots diminishing to northwest 15.
Friday Wind southeast 30 knots becoming northwest 30 late in the day.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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Ice Conditions

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

Ice Forecasts

Lake Huron

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.

Ice Forecasts

Lake Michigan

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 9 March 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today departing ridge located on a line
northeast-southwest over Virginia.

At 3:00 a.m. EDT today low 990 mb located northwest of Lake
Superior.
By 3:00 a.m. EDT Tuesday low 984 mb located over Labrador.

By 3:00 a.m. EDT Tuesday low 998 mb located over Nebraska.

By 3:00 a.m. EDT Tuesday high 1024 mb located over northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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