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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 17 April 2026

Tonight and Saturday.

Wind southeast 15 knots veering to south 20 this evening then increasing to south 25 late overnight. Wind veering to west 20 near noon Saturday.

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

Waves

Issued 06:30 PM EDT 17 April 2026
Tonight and Saturday. Waves 0.5 to 1 metre building to 1 to 1.5 near midnight and to 2 early Saturday morning. Waves subsiding to 1 to 1.5 Saturday afternoon.

Extended Forecast

Issued 06:30 PM EDT 17 April 2026
Sunday Wind northwest 15 knots increasing to northwest 25 late in the day.
Monday Wind northwest 20 knots diminishing to light late in the day.
Tuesday Wind south 25 knots.

Ice Forecast*

Issued 12:00 PM EDT 17 April 2026 Today Tonight and Saturday 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
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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 17 April 2026 Today Tonight and Saturday

Ice Coverage

Ice free.

Ice Forecasts

Northern Lake Michigan

Issued 12:00 PM EDT 17 April 2026 Today Tonight and Saturday

Ice Coverage

Open water except 3 tenths thick lake ice in and near the Straits of
Mackinac.

Ice Forecasts

Southern Lake Michigan

Issued 12:00 PM EDT 17 April 2026 Today Tonight and Saturday

Ice Coverage

Ice free.

Ice Forecasts

Green Bay

Issued 12:00 PM EDT 17 April 2026 Today Tonight and Saturday

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 6:30 PM EDT 17 April 2026 Tonight and Saturday At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over the St. Lawrence River.
By 6:30 p.m. EDT Saturday ridge located on a line
northeast-southwest over Nova Scotia.

At 6:30 p.m. EDT tonight low 994 mb located over western Lake
Superior.
By 6:30 p.m. EDT Saturday low 982 mb located over southern
Hudson Bay.

At 6:30 p.m. EDT tonight cold front located on a line north-south
over Wisconsin.
By 6:30 p.m. EDT Saturday cold front from low located on a line
north-south over eastern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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