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Northern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 19 July 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind north 15 knots diminishing to north 10 this morning then backing to northwest 10 near noon. Wind backing to southwest 10 early this evening then increasing to south 15 Monday morning. Wind increasing to south 20 Monday evening.

Scattered showers Monday evening. Smoke dissipating early this morning. Visibility as low as 1 mile in smoke.

Waves

Issued 03:00 AM EDT 19 July 2026
Today Tonight and Monday. Waves 0.5 to 1 metre subsiding to 0.5 or less near noon then building to 1 near noon Monday. Waves building to 1.5 Monday evening.

Extended Forecast

Issued 03:00 AM EDT 19 July 2026
Tuesday Wind southwest 20 knots veering to northwest 15 in the afternoon then increasing to northwest 25 late in the day.
Wednesday Wind northwest 20 knots.
Thursday Wind northwest 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 03:00 AM EDT 19 July 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 19 July 2026 Today Tonight and Monday At 3:00 a.m. EDT today low 997 mb located over eastern Quebec.
By 3:00 a.m. EDT Monday low 988 mb located south of Labrador.

At 3:00 a.m. EDT today ridge located on a line north-south over
northwestern Ontario.
By 3:00 a.m. EDT Monday ridge located on a line north-south over
southern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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