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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 19 April 2026

Tonight and Monday.

Wind northwest 25 knots diminishing to north 15 late overnight and to northwest 10 Monday morning. Wind increasing to west 15 Monday afternoon then backing to southwest 15 Monday evening.

Scattered flurries ending Monday morning.

Waves

Issued 06:30 PM EDT 19 April 2026
Tonight and Monday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 early Monday morning and to 0.5 or less near noon Monday. Waves building to 0.5 to 1 Monday evening.

Extended Forecast

Issued 06:30 PM EDT 19 April 2026
Tuesday Wind southwest 15 knots backing to south 20 in the morning then diminishing to light late in the day.
Wednesday Wind light.
Thursday Wind light becoming southeast 15 knots late in the day.

Ice Forecast*

Issued 12:00 PM EDT 19 April 2026 Today Tonight and Monday Open water except 2 tenths thick lake ice along parts of the northeastern shore. Consolidated rotten thick lake ice along parts of the northeastern shore.

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

 

[ Canadian Ice Service ]

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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 19 April 2026 Today Tonight and Monday

Ice Coverage

Open water except 2 tenths thick lake ice along parts of the
northeastern shore. Consolidated rotten thick lake ice along parts
of the northeastern shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 19 April 2026 Tonight and Monday At 6:30 p.m. EDT tonight departing low 990 mb located over eastern
Hudson Bay.

At 6:30 p.m. EDT tonight high 1029 mb located over northeastern
North Dakota.
By 6:30 p.m. EDT Monday high 1030 mb located south of Lake Erie.

At 6:30 p.m. EDT tonight low 995 mb located over the southern
Northwest Territories.
By 6:30 p.m. EDT Monday low 991 mb located over northeastern
Manitoba.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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