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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 21 January 2026

Today Tonight and Thursday.

Wind south 25 knots veering to southwest 20 this afternoon then to west 25 this evening. Wind west 25 Thursday.

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

Freezing spray warning in effect.

Freezing spray ending this evening. Freezing spray beginning overnight.

Waves

Issued 10:30 AM EST 21 January 2026
Today Tonight and Thursday. Over open water waves 2 metres subsiding to 1.5 early this evening then building to 2 near midnight.

Extended Forecast

Issued 03:00 AM EST 21 January 2026
Friday Wind west 25 knots.
Saturday Wind northwest 20 knots diminishing to light.
Sunday Wind east 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
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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)

Freezing spray warning in effect

Southern Lake Huron

Issued 10:30 AM 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 10:30 AM EST 21 January 2026 Today Tonight and Thursday At 10:30 a.m. EST today departing ridge located on a line
northeast-southwest over the Eastern Seaboard.

At 10:30 a.m. EST today trough located on a line north-south over
the Ontario - Manitoba border.
By 10:30 a.m. EST Thursday low 1003 mb located over western Quebec.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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