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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 22 March 2025

Today Tonight and Sunday.

Wind northwest 30 knots diminishing to northwest 20 this afternoon and to northwest 15 this evening. Wind diminishing to light near midnight then increasing to southeast 15 Sunday morning. Wind increasing to southeast 20 Sunday evening.

Snow Sunday evening.

Freezing spray warning in effect.

Freezing spray ending this evening.

Waves

Issued 10:30 AM EDT 22 March 2025
Today Tonight and Sunday. Waves 3 metres subsiding to 1 to 1.5 early this evening and to 0.5 or less late overnight. Waves building to 0.5 to 1 near noon Sunday and to 1 to 1.5 Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 22 March 2025
Monday Wind southeast 25 knots veering to southwest 20 in the morning.
Tuesday Wind northwest 25 knots diminishing to light late in the day.
Wednesday Wind east 15 knots becoming northwest 15.

Ice Forecast*

Issued 12:00 PM EDT 22 March 2025 Today Tonight and Sunday Open water except 9 tenths thick lake ice along parts of the eastern shore.

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

    

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Huron marine weather areas Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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Ice Conditions

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

Ice Forecasts

Southern Lake Huron

Issued 12:00 PM EDT 22 March 2025 Today Tonight and Sunday

Ice Coverage

Open water except 9 tenths thick lake ice along parts of the eastern
shore.

Ice Forecasts

Northern Lake Michigan

Issued 12:00 PM EDT 22 March 2025 Today Tonight and Sunday

Ice Coverage

Open water except 6 tenths thick lake ice east of Beaver Island.
Consolidated thick lake ice along parts of the eastern shore.

Ice Forecasts

Southern Lake Michigan

Issued 12:00 PM EDT 22 March 2025 Today Tonight and Sunday

Ice Coverage

Open water.

Ice Forecasts

Green Bay

Issued 12:00 PM EDT 22 March 2025 Today Tonight and Sunday

Ice Coverage

Open water except 2 tenths thick lake ice in northern Green Bay.
Consolidated thick lake ice in northern Bays de Noc.

Warnings

Warnings (In effect)

Freezing spray warning in effect

Southern Lake Huron

Issued 10:30 AM EDT 22 March 2025

Moderate or severe freezing spray is occurring or expected to occur in this marine area. 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 22 March 2025 Today Tonight and Sunday At 10:30 a.m. EDT today cold front located on a line
northeast-southwest over eastern Ontario.
By 10:30 a.m. EDT Sunday departing cold front located on a line
northeast-southwest over the Gulf of St. Lawrence.

At 10:30 a.m. EDT today ridge located on a line north-south over
western Lake Superior.
By 10:30 a.m. EDT Sunday ridge located on a line north-south over
Lake Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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