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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 21 January 2026

Tonight and Thursday.

Gale warning in effect.

Wind southwest 20 knots veering to west 25 this evening then increasing to west 35 Thursday morning. Wind diminishing to west 30 Thursday evening.

Snow changing to scattered flurries near midnight. Visibility 1 mile or less in snow.

Freezing spray warning in effect.

Freezing spray beginning overnight.

Waves

Issued 06:30 PM EST 21 January 2026
Tonight and Thursday. Over open water waves 1 to 1.5 metres building to 2 near midnight and to 2 to 3 near noon Thursday.

Extended Forecast

Issued 06:30 PM EST 21 January 2026
Friday Wind west 30 knots.
Saturday Wind northwest 20 knots diminishing to light.
Sunday Wind southeast 20 knots backing to northeast 20.

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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:
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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

Southern Lake Huron

Issued 6:30 PM EST 21 January 2026

'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

Southern Lake Huron

Issued 6:30 PM EST 21 January 2026

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 21 January 2026 Tonight and Thursday At 6:30 p.m. EST tonight departing ridge located on a line
northeast-southwest over the Eastern Seaboard.

At 6:30 p.m. EST tonight low 1004 mb located over Lake Superior.
By 6:30 p.m. EST Thursday low 1003 mb located over western Quebec.

At 6:30 p.m. EST tonight trough located on a line
northwest-southeast over southern Manitoba.
By 6:30 p.m. EST Thursday trough located on a line east-west over
eastern Lake Superior.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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