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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 12 December 2025

Tonight and Saturday.

Wind southwest 20 knots increasing to west 30 early Saturday morning then diminishing to northwest 20 Saturday evening.

Flurries. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray beginning Saturday morning.

Waves

Issued 06:30 PM EST 12 December 2025
Tonight and Saturday. Waves 0.5 to 1 metre building to 1 to 1.5 this evening and to 2 late overnight.

Extended Forecast

Issued 06:30 PM EST 12 December 2025
Sunday Wind northwest 25 knots diminishing to northwest 15 late in the day.
Monday Wind west 15 knots increasing to southwest 30.
Tuesday Wind southwest 20 knots increasing to southwest 30 late in the day.

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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:
buoy Buoy
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 6:30 PM EST 12 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 12 December 2025 Tonight and Saturday At 6:30 p.m. EST tonight departing ridge located on a line
north-south over southern Ontario.

At 6:30 p.m. EST tonight low 1008 mb located over northern Ontario.
By 6:30 p.m. EST Saturday low 1010 mb located over northeastern
Ontario.

By 6:30 p.m. EST Saturday approaching ridge located on a line
north-south over North Dakota.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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