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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 24 March 2025

Today Tonight and Tuesday.

Wind southeast 30 knots veering to southwest 25 this morning then to west 25 early this evening. Wind diminishing to northwest 15 near midnight and to northwest 10 Tuesday morning. Wind increasing to west 20 Tuesday afternoon then veering to northwest 15 Tuesday evening.

Snow changing to scattered showers or scattered flurries this morning then to scattered flurries this afternoon. Visibility 1 mile or less in precipitation.

Waves

Issued 03:00 AM EDT 24 March 2025
Today Tonight and Tuesday. Over open water waves 2 metres subsiding to 1.5 this morning and to 0.5 to 1 overnight. Waves subsiding to 0.5 Tuesday morning then building to 1 to 1.5 Tuesday evening.

Extended Forecast

Issued 03:00 AM EDT 24 March 2025
Wednesday Wind northwest 15 knots.
Thursday Wind southwest 20 knots veering to northwest 20 late in the day.
Friday Wind north 15 knots veering to northeast 20 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 23 March 2025 Today Tonight and Monday Open water except 5 tenths medium lake ice including 1 tenth thick lake ice in the northeastern section. Consolidated thick lake ice along the northeastern shores.

*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 23 March 2025 Today Tonight and Monday

Ice Coverage

Open water except 5 tenths medium lake ice including 1 tenth thick
lake ice in the northeastern section. Consolidated thick lake ice
along the northeastern shores.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 24 March 2025 Today Tonight and Tuesday At 3:00 a.m. EDT today departing ridge located on a line
northwest-southeast over Maine.

At 3:00 a.m. EDT today low 996 mb located over northern Lake
Michigan.
By 3:00 a.m. EDT Tuesday low 1000 mb located over southern Quebec.

By 3:00 a.m. EDT Tuesday ridge located on a line northeast-southwest
over northwestern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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