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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 31 March 2025

Today Tonight and Tuesday.

Wind north 20 knots backing to northwest 20 early this morning then diminishing to northwest 15 near noon. Wind veering to north 15 overnight then diminishing to northwest 10 Tuesday morning. Wind becoming light Tuesday afternoon then becoming east 15 Tuesday evening.

Scattered showers this morning changing to scattered flurries and ending this afternoon.

Waves

Issued 03:00 AM EDT 31 March 2025
Today Tonight and Tuesday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 this afternoon and to 0.5 or less near noon Tuesday.

Extended Forecast

Issued 03:00 AM EDT 31 March 2025
Wednesday Wind southeast 20 knots increasing to southeast 30 late in the day.
Thursday Wind southeast 30 knots diminishing to west 15 late in the day.
Friday Wind north 15 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 30 March 2025 Today Tonight and Monday 2 tenths thick lake ice. CONSOLIDATED rotten 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 Huron 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 30 March 2025 Today Tonight and Monday

Ice Coverage

2 tenths thick lake ice. CONSOLIDATED rotten thick lake ice along
the northeastern shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 31 March 2025 Today Tonight and Tuesday At 3:00 a.m. EDT today quasi-stationary ridge located on a line
east-west over Hudson Bay.

At 3:00 a.m. EDT today low 996 mb located over Georgian Bay.
By 3:00 a.m. EDT Tuesday low 995 mb located over the Gulf of
St. Lawrence.

At 3:00 a.m. EDT today ridge located on a line north-south over
Manitoba.
By 3:00 a.m. EDT Tuesday ridge located on a line north-south over
Lake Superior.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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