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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 17 February 2026

Tonight and Wednesday.

Wind light becoming east 10 knots near midnight then increasing to east 20 early Wednesday morning.

Snow Wednesday with a risk of freezing rain changing to scattered flurries. Fog patches dissipating near midnight. Visibility 1 mile or less in fog patches and in snow.

Waves

Issued 06:30 PM EST 17 February 2026
Tonight and Wednesday. Mainly ice covered.

Extended Forecast

Issued 06:30 PM EST 17 February 2026
Thursday Wind east 15 knots increasing to east 20 late in the day.
Friday Wind southeast 30 knots diminishing to southwest 15 late in the day.
Saturday Wind light becoming northeast 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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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 February 2026 Tonight and Wednesday At 6:30 p.m. EST tonight ridge located on a line northwest-southeast
over Georgian Bay.
By 6:30 p.m. EST Wednesday ridge located on a line
northwest-southeast over western Quebec.

At 6:30 p.m. EST tonight low 985 mb located over South Dakota.
By 6:30 p.m. EST Wednesday low 990 mb located over eastern
Minnesota.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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