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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 20 May 2026

Today Tonight and Thursday.

Strong wind warning in effect.

Wind northwest 20 knots diminishing to northwest 15 this evening then veering to north 15 near midnight. Wind veering to northeast 15 early Thursday morning then diminishing to light near noon Thursday.

Waves

Issued 10:30 AM EDT 20 May 2026
Today Tonight and Thursday. Waves 2 metres subsiding to 1.5 near noon and to 1 this evening. Waves subsiding to less than 0.5 Thursday afternoon.

Extended Forecast

Issued 03:00 AM EDT 20 May 2026
Friday Wind north 15 knots diminishing to light in the morning then becoming east 15 late in the day.
Saturday Wind east 20 knots.
Sunday Wind southeast 15 knots diminishing to light.

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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
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Ice Conditions

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

Ice Forecasts

Lake Huron

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.

Ice Forecasts

Lake Michigan

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Northern Lake Huron

Issued 10:30 AM EDT 20 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 10:30 AM EDT 20 May 2026 Today Tonight and Thursday At 10:30 a.m. EDT today high 1029 mb located over western Lake
Superior.
By 10:30 a.m. EDT Thursday high 1033 mb located over Whitefish Bay.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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