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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 09 February 2026

Today Tonight and Tuesday.

Wind southeast 10 knots increasing to southeast 15 this afternoon and to southeast 20 late overnight. Wind diminishing to variable 10 near noon Tuesday then increasing to west 15 Tuesday afternoon. Wind veering to northwest 20 Tuesday evening.

Scattered flurries beginning this evening changing to snow near midnight then to scattered flurries Tuesday afternoon. Visibility as low as 1 mile in snow.

Waves

Issued 10:30 AM EST 09 February 2026
Today Tonight and Tuesday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 09 February 2026
Wednesday Wind northwest 20 knots.
Thursday Wind north 15 knots diminishing to light.
Friday Wind light becoming west 15 knots late in the day.

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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
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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 10:30 AM EST 9 February 2026 Today Tonight and Tuesday At 10:30 a.m. EST today ridge located on a line north-south over
southern Ontario.
By 10:30 a.m. EST Tuesday ridge located on a line north-south over
eastern Quebec.

At 10:30 a.m. EST today low 1002 mb located over northwestern
Ontario.
By 10:30 a.m. EST Tuesday low 1004 mb located north of Lake
Superior.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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