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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 11 March 2026

Tonight and Thursday.

Wind northwest 25 knots increasing to northwest 30 this evening then diminishing to northwest 20 Thursday afternoon. Wind diminishing to northwest 10 Thursday evening.

Freezing rain changing to scattered flurries this evening. Visibility 1 mile or less in flurries.

Waves

Issued 06:30 PM EDT 11 March 2026
Tonight and Thursday. Over open water waves 1.5 metres building to 2 near midnight then subsiding to 1.5 near noon Thursday. Waves subsiding to 1 Thursday evening.

Extended Forecast

Issued 06:30 PM EDT 11 March 2026
Friday Wind southeast 35 knots diminishing to east 30 in the afternoon then increasing to northwest 35 late in the day.
Saturday Wind northwest 35 knots diminishing to light.
Sunday Wind east 20 knots increasing to northeast 35 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 11 March 2026 Today Tonight and Thursday 1 tenth thick lake ice except 7 tenths medium lake ice including 3 tenths thick lake ice near parts of the shores. Consolidated thick lake ice along parts of the shore and in the Straits of Mackinac.

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

    

[ Canadian Ice Service ]

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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

Northern Lake Huron

Issued 12:00 PM EDT 11 March 2026 Today Tonight and Thursday

Ice Coverage

1 tenth thick lake ice except 7 tenths medium lake ice including 3
tenths thick lake ice near parts of the shores. Consolidated thick
lake ice along parts of the shore and in the Straits of Mackinac.

Ice Forecasts

Northern Lake Michigan

Issued 12:00 PM EDT 11 March 2026 Today Tonight and Thursday

Ice Coverage

Open water except 3 tenths medium lake ice in Grand Traverse Bay. 3
tenths thick lake ice in north of and east of Fox Islands.
Consolidated thick lake ice in the Straits of Mackinac and in Little
Traverse Bay.

Ice Forecasts

Southern Lake Michigan

Issued 12:00 PM EDT 11 March 2026 Today Tonight and Thursday

Ice Coverage

Open water.

Ice Forecasts

Green Bay

Issued 12:00 PM EDT 11 March 2026 Today Tonight and Thursday

Ice Coverage

7 tenths thick lake ice. Consolidated thick lake ice in Bays de Noc
and southern Green Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 11 March 2026 Tonight and Thursday At 6:30 p.m. EDT tonight low 995 mb located over eastern Ontario.
By 6:30 p.m. EDT Thursday departing low 991 mb located over the
Gulf of St. Lawrence.

By 6:30 p.m. EDT Thursday ridge located on a line north-south over
northeastern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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