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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 13 April 2026

Today Tonight and Tuesday.

Wind southwest 25 knots diminishing to west 15 early this evening and to variable 10 late this evening. Wind increasing to south 15 overnight then veering to southwest 15 near noon Tuesday.

Scattered showers and fog patches. Risk of thunderstorms overnight and Tuesday.

Waves

Issued 03:00 AM EDT 13 April 2026
Today Tonight and Tuesday. Waves 2 metres subsiding to 0.5 or less this evening then building to 0.5 to 1 Tuesday morning.

Extended Forecast

Issued 03:00 AM EDT 13 April 2026
Wednesday Wind light becoming south 15 knots in the morning then diminishing to light in the afternoon.
Thursday Wind light increasing to southwest 20 knots.
Friday Wind northwest 15 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 12 April 2026 Today Tonight and Monday Ice free.

*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
Legend:
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land station Land Station
Ice Conditions

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

Ice Forecasts

Southern Lake Huron

Issued 12:00 PM EDT 12 April 2026 Today Tonight and Monday

Ice Coverage

Ice free.

Ice Forecasts

Northern Lake Michigan

Issued 12:00 PM EDT 12 April 2026 Today Tonight and Monday

Ice Coverage

Open water except 2 tenths thick lake ice north of Fox Islands.
Consolidated rotten thick lake ice in and near the Straits of
Mackinac.

Ice Forecasts

Southern Lake Michigan

Issued 12:00 PM EDT 12 April 2026 Today Tonight and Monday

Ice Coverage

Ice free.

Ice Forecasts

Green Bay

Issued 12:00 PM EDT 12 April 2026 Today Tonight and Monday

Ice Coverage

1 tenth thick lake ice. Consolidated rotten thick lake ice in Bays
de Noc.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 13 April 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today trough located on a line northeast-southwest
over Lake Superior.
By 3:00 a.m. EDT Tuesday trough located on a line north-south over
eastern Quebec.

At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over Saskatchewan.
By 3:00 a.m. EDT Tuesday ridge located on a line northwest-southeast
over northern Ontario.

At 3:00 a.m. EDT today low 1002 mb located over western Nebraska.
By 3:00 a.m. EDT Tuesday low 1002 mb located over Iowa.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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