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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 15 June 2026

Today Tonight and Tuesday.

Wind northwest 15 knots backing to southwest 15 near noon then diminishing to southwest 10 near midnight. Wind increasing to southwest 15 early Tuesday morning then backing to south 15 Tuesday evening.

Scattered showers Tuesday late in the day with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 15 June 2026
Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less late overnight then building to 0.5 to 1 Tuesday morning.

Extended Forecast

Issued 03:00 AM EDT 15 June 2026
Wednesday Wind south 15 knots diminishing to light in the morning.
Thursday Wind southeast 25 knots becoming west 25.
Friday Wind northwest 20 knots.

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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

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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 15 June 2026 Today Tonight and Tuesday At 10:30 a.m. EDT today low 1003 mb located over northwestern
Ontario.
By 10:30 a.m. EDT Tuesday low 1003 mb located over Upper Michigan.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over southern Ontario.
By 10:30 a.m. EDT Tuesday ridge located on a line
northeast-southwest over New York State.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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