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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 05 December 2025

Today Tonight and Saturday.

Gale warning in effect.

Wind southwest 25 knots increasing to southwest 35 early this morning then diminishing to southwest 25 near noon. Wind veering to west 25 Saturday morning then to northwest 25 near noon Saturday. Wind diminishing to northwest 10 Saturday evening.

Flurries. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray ending this afternoon.

Waves

Issued 03:00 AM EST 05 December 2025
Today Tonight and Saturday. Waves 2 to 3 metres subsiding to 2 this afternoon and to 1.5 Saturday afternoon. Waves subsiding to 0.5 to 1 Saturday evening.

Extended Forecast

Issued 03:00 AM EST 05 December 2025
Sunday Wind light increasing to west 20 knots in the morning then veering to northwest 25 in the afternoon.
Monday Wind northwest 25 knots diminishing to light.
Tuesday Wind southwest 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:
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 05 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.

Freezing spray warning in effect

Northern Lake Huron

Issued 03:00 AM EST 05 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 5 December 2025 Today Tonight and Saturday At 3:00 a.m. EST today ridge located on a line north-south over
Ottawa.
By 3:00 a.m. EST Saturday departing ridge located on a line
north-south over New Brunswick.

At 3:00 a.m. EST today cold front located on a line
northeast-southwest over southern Manitoba.
By 3:00 a.m. EST Saturday cold front located on a line
northeast-southwest over Sault Ste. Marie.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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