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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 22 May 2025

Today Tonight and Friday.

Wind northeast 15 knots diminishing to northeast 10 this afternoon then backing to north 10 this evening. Wind backing to northwest 10 Friday morning.

Periods of rain and fog banks.

Waves

Issued 03:00 AM EDT 22 May 2025
Today Tonight and Friday. Waves 0.5 to 1 metre subsiding to 0.5 early this evening.

Extended Forecast

Issued 03:00 AM EDT 22 May 2025
Saturday Wind northwest 15 knots.
Sunday Wind northwest 15 knots diminishing to light.
Monday Wind light.

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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 3:00 AM EDT 22 May 2025 Today Tonight and Friday At 3:00 a.m. EDT today low 1002 mb located north of Lake Erie.
By 3:00 a.m. EDT Friday low 1005 mb located over Lake Ontario.

At 3:00 a.m. EDT today quasi-stationary ridge located on a line
north-south over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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