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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 22 April 2026

Tonight and Thursday.

Wind northwest 10 knots becoming light near midnight then becoming southeast 10 early Thursday morning. Wind backing to east 10 near noon Thursday then increasing to east 15 Thursday evening.

Waves

Issued 06:30 PM EDT 22 April 2026
Tonight and Thursday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 22 April 2026
Friday Wind east 20 knots.
Saturday Wind southeast 20 knots backing to northeast 15 late in the day.
Sunday Wind light.

Ice Forecast*

Issued 12:00 PM EDT 22 April 2026 Today Tonight and Thursday Open water.

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

 

[ Canadian Ice Service ]

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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
Legend:
buoy Buoy
land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 22 April 2026 Today Tonight and Thursday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 22 April 2026 Tonight and Thursday At 6:30 p.m. EDT tonight ridge located on a line north-south over
Lake Huron.
By 6:30 p.m. EDT Thursday ridge located on a line north-south over
eastern Ontario.

At 6:30 p.m. EDT tonight cold front located from North Dakota
to Colorado.
By 6:30 p.m. EDT Thursday cold front located from Lake of the
Woods to Kansas.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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