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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 16 December 2025

Today Tonight and Wednesday.

Gale warning in effect.

Wind southwest 25 knots increasing to southwest 40 early this evening then diminishing to southwest 30 late overnight. Wind veering to northwest 30 Wednesday morning then diminishing to northwest 20 Wednesday afternoon. Wind diminishing to south 15 Wednesday evening.

Scattered flurries ending this afternoon with a risk of freezing drizzle. Scattered showers overnight and Wednesday morning.

Waves

Issued 10:30 AM EST 16 December 2025
Today Tonight and Wednesday. Waves 1 metre building to 2 to 3 near noon and to 3 to 4 this evening. Waves subsiding to 2 to 3 early Wednesday morning and to 1 to 1.5 Wednesday evening.

Extended Forecast

Issued 03:00 AM EST 16 December 2025
Thursday Wind south 25 knots increasing to southwest 35 in the afternoon.
Friday Wind northwest 35 knots diminishing to south 20.
Saturday Wind southwest 20 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:
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)

Gale warning in effect

Northern Lake Huron

Issued 10:30 AM EST 16 December 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 EST 16 December 2025 Today Tonight and Wednesday At 10:30 a.m. EST today departing ridge located on a line
northeast-southwest over Virginia.

At 10:30 a.m. EST today low 984 mb located over northwestern
Ontario.
By 10:30 a.m. EST Wednesday trough from low located on a line
northeast-southwest over Georgian Bay.

By 10:30 a.m. EST Wednesday ridge located on a line north-south
over Wisconsin.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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