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Northern Georgian Bay

Forecast

Marine Forecast

Issued 03:00 AM EDT 29 March 2025

Today Tonight and Sunday.

Wind northeast 20 knots diminishing to northeast 15 this afternoon then veering to east 20 near midnight. Wind veering to south 25 Sunday evening.

Freezing rain ending near noon. Rain beginning this evening and changing to freezing rain near midnight then to rain Sunday afternoon with a risk of thunderstorms. Fog patches forming Sunday evening.

Waves

Issued 03:00 AM EDT 29 March 2025
Today Tonight and Sunday. Over open water waves 1 metre.

Extended Forecast

Issued 03:00 AM EDT 29 March 2025
Monday Wind southwest 25 knots veering to northwest 20 in the morning.
Tuesday Wind northwest 25 knots diminishing to northeast 15.
Wednesday Wind northeast 15 knots increasing to southeast 30 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 28 March 2025 Today Tonight and Saturday Open water except 8 tenths medium lake ice including 3 tenths thick lake ice along the northeastern shore. Consolidated thick lake ice along the northeastern shore.

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

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

Ice Forecasts

Issued 12:00 PM EDT 28 March 2025 Today Tonight and Saturday

Ice Coverage

Open water except 8 tenths medium lake ice including 3 tenths thick
lake ice along the northeastern shore. Consolidated thick lake ice
along the northeastern shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 29 March 2025 Today Tonight and Sunday At 3:00 a.m. EDT today quasi-stationary trough located on a line
east-west over Lake Ontario.

At 3:00 a.m. EDT today quasi-stationary ridge located on a line
east-west over northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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