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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 17 December 2025

Today Tonight and Thursday.

Gale warning in effect.

Wind southwest 30 knots veering to northwest 30 this morning then diminishing to northwest 20 this afternoon. Wind backing to west 15 early this evening then to south 15 late this evening. Wind increasing to south 25 near midnight and to south 35 Thursday evening.

Scattered showers ending near noon. Rain Thursday.

Waves

Issued 03:00 AM EST 17 December 2025
Today Tonight and Thursday. Waves 3 to 4 metres subsiding to 2 to 3 early this morning and to 1 to 1.5 this evening. Waves building to 2 to 3 overnight and to 3 to 4 Thursday morning.

Extended Forecast

Issued 03:00 AM EST 17 December 2025
Friday Wind west 25 knots increasing to northwest 35 in the afternoon then diminishing to northwest 30 late in the day.
Saturday Wind northwest 20 knots becoming south 20.
Sunday Wind northwest 20 knots backing to west 25.

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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 03:00 AM EST 17 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 3:00 AM EST 17 December 2025 Today Tonight and Thursday At 3:00 a.m. EST today departing trough from low located on a line
northeast-southwest over Sault Ste. Marie.

At 3:00 a.m. EST today ridge located on a line north-south over
Lake of the Woods.
By 3:00 a.m. EST Thursday ridge located on a line north-south
over Montréal.

By 3:00 a.m. EST Thursday low 982 mb located near Lake of the Woods.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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