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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 17 April 2026

Today Tonight and Saturday.

Wind light becoming east 10 knots this morning then increasing to southeast 15 early this evening. Wind increasing to south 25 near midnight and to northwest 30 near noon Saturday. Wind diminishing to northwest 20 Saturday evening.

Showers Saturday with a risk of thunderstorms becoming scattered flurries or scattered showers. Fog patches dissipating Saturday afternoon.

Waves

Issued 03:00 AM EDT 17 April 2026
Today Tonight and Saturday. Waves 0.5 metres or less building to 0.5 to 1 this evening and to 1.5 overnight. Waves building to 2 to 3 Saturday morning then subsiding to 1.5 Saturday evening.

Extended Forecast

Issued 03:00 AM EDT 17 April 2026
Sunday Wind northwest 20 knots increasing to northwest 25 in the afternoon.
Monday Wind northwest 20 knots diminishing to light late in the day.
Tuesday Wind south 25 knots.

Ice Forecast*

Issued 12:00 PM EDT 16 April 2026 Today Tonight and Friday Open water except 1 tenth thick lake ice in the northwestern section. Consolidated rotten thick lake ice along parts of the northwestern shore.

*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 16 April 2026 Today Tonight and Friday

Ice Coverage

Open water except 1 tenth thick lake ice in the northwestern
section. Consolidated rotten thick lake ice along parts of the
northwestern shore.

Ice Forecasts

Northern Lake Michigan

Issued 12:00 PM EDT 16 April 2026 Today Tonight and Friday

Ice Coverage

Open water except 1 tenth thick lake ice north of and east of Beaver
Island. 7 tenths rotten thick lake ice in and near the Straits of
Mackinac.

Ice Forecasts

Southern Lake Michigan

Issued 12:00 PM EDT 16 April 2026 Today Tonight and Friday

Ice Coverage

Ice free.

Ice Forecasts

Green Bay

Issued 12:00 PM EDT 16 April 2026 Today Tonight and Friday

Ice Coverage

Open water. 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 17 April 2026 Today Tonight and Saturday At 3:00 a.m. EDT today departing trough located on a line
northeast-southwest over New England.

At 3:00 a.m. EDT today ridge located on a line north-south over
Lake Michigan.
By 3:00 a.m. EDT Saturday ridge located on a line
northeast-southwest over the St. Lawrence River.

At 3:00 a.m. EDT today low 994 mb located over western Nebraska.
By 3:00 a.m. EDT Saturday low 994 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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