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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 13 May 2026

Today Tonight and Thursday.

Strong wind warning in effect.

Wind southwest 15 knots veering to west 15 this morning then increasing to northwest 25 near noon. Wind diminishing to northwest 15 near noon Thursday and to north 10 Thursday evening.

Showers ending Thursday morning. Risk of thunderstorms early this morning. Fog patches dissipating near noon.

Waves

Issued 03:00 AM EDT 13 May 2026
Today Tonight and Thursday. Waves 1.5 metres subsiding to 1 early this morning then building to 2 this afternoon. Waves subsiding to 1 Thursday afternoon and to 0.5 Thursday evening.

Extended Forecast

Issued 03:00 AM EDT 13 May 2026
Friday Wind light becoming south 15 knots in the afternoon.
Saturday Wind southwest 20 knots diminishing to light late in the day.
Sunday Wind light becoming southeast 15 knots late in the day.

Ice Forecast*

Issued 12:00 PM EDT 12 May 2026 Today Tonight and Wednesday Ice free.

*Ice Forecast and Warnings also apply to U.S. waters

  

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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 12 May 2026 Today Tonight and Wednesday

Ice Coverage

Ice free.

Ice Forecasts

Lake Michigan

Issued 12:00 PM EDT 12 May 2026 Today Tonight and Wednesday

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Southern Lake Huron

Issued 03:00 AM EDT 13 May 2026

'Strong' winds of 20 to 33 knots are 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 EDT 13 May 2026 Today Tonight and Thursday At 3:00 a.m. EDT today weakening ridge located on a line north-south
over central Quebec.

At 3:00 a.m. EDT today low 1005 mb located over Lower Michigan.
By 3:00 a.m. EDT Thursday low 1007 mb located over eastern Ontario.

At 3:00 a.m. EDT today ridge located on a line north-south over
Manitoba.
By 3:00 a.m. EDT Thursday ridge located on a line
northeast-southwest over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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