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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 17 January 2026

Tonight and Sunday.

Wind southwest 25 knots increasing to southwest 30 this evening then diminishing to southwest 20 Sunday morning. Wind diminishing to southwest 15 Sunday afternoon then increasing to southwest 20 Sunday evening.

Flurries. Visibility 1 mile or less in flurries.

Risk of freezing spray late overnight and Sunday morning.

Waves

Issued 06:30 PM EST 17 January 2026
Tonight and Sunday. Over open water waves 1 to 1.5 metres building to 2 near midnight then subsiding to 1 to 1.5 early Sunday morning. Waves subsiding to 1 near noon Sunday.

Extended Forecast

Issued 06:30 PM EST 17 January 2026
Monday Wind southwest 25 knots increasing to northwest 35 in the afternoon then diminishing to northwest 25 late in the day.
Tuesday Wind northwest 20 knots.
Wednesday Wind southwest 20 knots increasing to southwest 25 late in the day.

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

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

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 17 January 2026 Tonight and Sunday At 6:30 p.m. EST tonight departing ridge located on a line
northwest-southeast over New Brunswick.

At 6:30 p.m. EST tonight low 1007 mb located over eastern Quebec.
By 6:30 p.m. EST Sunday departing low 1011 mb located over
southeastern Quebec.

At 6:30 p.m. EST tonight ridge located on a line northeast-southwest
over Manitoba.
By 6:30 p.m. EST Sunday ridge located on a line north-south over
Hudson Bay.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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