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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 09 December 2025

Tonight and Wednesday.

Wind west 20 knots diminishing to variable 10 near midnight then increasing to east 25 early Wednesday morning. Wind backing to northeast 30 late Wednesday morning then to north 30 Wednesday afternoon. Wind backing to northwest 30 Wednesday evening.

Scattered flurries changing to snow overnight then to scattered flurries Wednesday afternoon. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Freezing spray beginning Wednesday evening.

Waves

Issued 06:30 PM EST 09 December 2025
Tonight and Wednesday. Waves 2 metres subsiding to 1.5 this evening and to 0.5 to 1 late overnight. Waves building to 2 Wednesday morning and to 2 to 3 Wednesday evening.

Extended Forecast

Issued 06:30 PM EST 09 December 2025
Thursday Wind northwest 25 knots.
Friday Wind northwest 15 knots increasing to southwest 25 late in the day.
Saturday Wind southwest 25 knots veering to northwest 20 late in the day.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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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 6:30 PM EST 09 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 6:30 PM EST 9 December 2025 Tonight and Wednesday At 6:30 p.m. EST tonight dissipating low 1000 mb located over
Lake Superior.

At 6:30 p.m. EST tonight low 991 mb located over Minnesota.
By 6:30 p.m. EST Wednesday low 990 mb located over eastern Ontario.

At 6:30 p.m. EST tonight departing ridge located on a line
northeast-southwest over Maine.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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