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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 12 March 2026

Today Tonight and Friday.

Gale warning in effect.

Wind northwest 30 knots diminishing to northwest 15 this afternoon and to light this evening. Wind increasing to southeast 20 overnight and to southeast 35 Friday morning. Wind diminishing to southwest 30 near noon Friday except northeast 30 over northern sections. Wind becoming north 30 Friday evening.

Scattered flurries ending this evening. Snow Friday morning and afternoon changing to scattered flurries. Visibility 1 mile or less in snow.

Waves

Issued 03:00 AM EDT 12 March 2026
Today Tonight and Friday. Over open water waves 2 metres subsiding to 1 to 1.5 near noon and to 0.5 to 1 early this evening. Waves subsiding to 0.5 or less near midnight then building to 2 to 3 Friday morning.

Extended Forecast

Issued 03:00 AM EDT 12 March 2026
Saturday Wind northwest 25 knots diminishing to northwest 15 in the morning and to light in the afternoon.
Sunday Wind east 15 knots increasing to northeast 35.
Monday Wind south 30 knots increasing to southwest 35.

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

Warnings (In effect)

Gale warning in effect

Northern Lake Huron

Issued 09:37 AM EDT 12 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 12 March 2026 Today Tonight and Friday At 10:30 a.m. EDT today ridge located on a line north-south over
western Lake Superior.
By 10:30 a.m. EDT Friday ridge located on a line north-south over
eastern Ontario.

By 10:30 a.m. EDT Friday approaching low 990 mb located over
Lake Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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