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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 15 March 2026

Today Tonight and Monday.

Gale warning in effect.

Wind southeast 20 knots increasing to east 35 near noon then diminishing to northeast 30 late overnight except south 30 over southern sections. Wind diminishing to southwest 25 near noon Monday then increasing to southwest 35 Monday evening.

Snow or freezing rain changing to showers overnight and ending near noon Monday with a risk of thunderstorms. Scattered flurries Monday evening. Visibility 1 mile or less in precipitation.

Waves

Issued 10:30 AM EDT 15 March 2026
Today Tonight and Monday. Over open water waves 1.5 metres building to 3 this afternoon then subsiding to 2 early Monday morning. Waves subsiding to 1.5 Monday afternoon then building to 3 Monday evening.

Extended Forecast

Issued 03:00 AM EDT 15 March 2026
Tuesday Wind northwest 35 knots diminishing to northwest 25 in the morning.
Wednesday Wind west 15 knots backing to southwest 20.
Thursday Wind southwest 20 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 15 March 2026 Today Tonight and Monday Open water except 7 tenths new lake ice including 1 tenth thick lake ice along parts of the northern and eastern shore. 9 tenths medium lake ice including 3 tenths thick lake ice along parts of the western shore. Consolidated thick lake ice along parts of the shore and near 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 15 March 2026 Today Tonight and Monday

Ice Coverage

Open water except 7 tenths new lake ice including 1 tenth thick lake
ice along parts of the northern and eastern shore. 9 tenths medium
lake ice including 3 tenths thick lake ice along parts of the
western shore. Consolidated thick lake ice along parts of the shore
and near the Straits of Mackinac.

Ice Forecasts

Northern Lake Michigan

Issued 12:00 PM EDT 15 March 2026 Today Tonight and Monday

Ice Coverage

Open water except 5 tenths medium lake ice in Grand Traverse Bay. 7
tenths thick lake ice north of and east of Fox Islands. Consolidated
thick lake ice near the Straits of Mackinac and in Little Traverse
Bay.

Ice Forecasts

Southern Lake Michigan

Issued 12:00 PM EDT 15 March 2026 Today Tonight and Monday

Ice Coverage

Open water.

Ice Forecasts

Green Bay

Issued 12:00 PM EDT 15 March 2026 Today Tonight and Monday

Ice Coverage

4 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 10:30 AM EDT 15 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 15 March 2026 Today Tonight and Monday At 10:30 a.m. EDT today departing ridge located on a line
north-south over eastern Ontario.

At 10:30 a.m. EDT today low 992 mb located over Iowa.
By 10:30 a.m. EDT Monday low 986 mb located over Lake Huron.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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