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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 14 December 2025

Today Tonight and Monday.

Wind north 20 knots backing to northwest 15 near noon then to west 20 near midnight. Wind increasing to southwest 30 Monday morning then diminishing to west 20 Monday afternoon. Wind diminishing to west 15 Monday evening.

Scattered flurries. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray ending early this morning. Risk of freezing spray late this morning. Risk of freezing spray Monday afternoon.

Waves

Issued 03:00 AM EST 14 December 2025
Today Tonight and Monday. Waves 2 metres subsiding to 1.5 early this morning and to 1 this afternoon. Waves building to 1.5 overnight and to 2 to 3 near noon Monday then subsiding to 1.5 Monday evening.

Extended Forecast

Issued 03:00 AM EST 14 December 2025
Tuesday Wind southwest 15 knots increasing to southwest 25 in the morning and to southwest 30 late in the day.
Wednesday Wind southwest 30 knots diminishing to light late in the day.
Thursday Wind south 30 knots.

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

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

Ice Forecasts

Lake Huron

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.

Ice Forecasts

Lake Michigan

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Freezing spray warning in effect

Northern Lake Huron

Issued 03:00 AM EST 14 December 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 3:00 AM EST 14 December 2025 Today Tonight and Monday At 3:00 a.m. EST today high 1044 mb located over southeastern
South Dakota.
By 3:00 a.m. EST Monday high 1039 mb located over Kentucky.

By 3:00 a.m. EST Monday approaching trough located on a line
north-south over Lake Superior.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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