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Southern Lake Huron

Forecast

Marine Forecast

Issued 10:30 AM EDT 27 July 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind south 10 knots becoming light this afternoon then increasing to north 15 near midnight. Wind increasing to north 20 early Tuesday morning and to north 25 Tuesday evening.

Showers ending Tuesday morning with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 27 July 2026
Today Tonight and Tuesday. Waves 0.5 metres or less building to 0.5 to 1 late overnight and to 1 to 1.5 Tuesday morning. Waves building to 2 Tuesday evening.

Extended Forecast

Issued 03:00 AM EDT 27 July 2026
Wednesday Wind north 25 knots diminishing to north 15 late in the day.
Thursday Wind north 15 knots diminishing to light.
Friday Wind light.

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

Southern Lake Huron

Issued 10:30 AM EDT 27 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 10:30 AM EDT 27 July 2026 Today Tonight and Tuesday At 10:30 a.m. EDT today low 1002 mb located over northwestern
Wisconsin.
By 10:30 a.m. EDT Tuesday low 998 mb located over eastern Lake Erie.

By 10:30 a.m. EDT Tuesday ridge located on a line
northeast-southwest over northwestern Ontario.

Great Lakes - Lake Huron Area

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