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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 01 May 2025

Tonight and Friday.

Strong wind warning in effect.

Wind southeast 15 knots increasing to southeast 20 this evening then veering to southwest 20 late overnight. Wind diminishing to west 15 near noon Friday and to northwest 10 Friday evening.

Showers and fog patches ending Friday morning.

Waves

Issued 06:30 PM EDT 01 May 2025
Tonight and Friday. Waves 0.5 to 1 metre.

Extended Forecast

Issued 06:30 PM EDT 01 May 2025
Saturday Wind light.
Sunday Wind north 15 knots.
Monday Wind northeast 15 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 1 May 2025 Today Tonight and Friday Open water.

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

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

Ice Forecasts

Issued 12:00 PM EDT 1 May 2025 Today Tonight and Friday

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 6:30 PM EDT 01 May 2025

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 1 May 2025 Tonight and Friday At 6:30 p.m. EDT tonight low 1001 mb located over western Lower
Michigan.
By 6:30 p.m. EDT Friday low 1001 mb located over southern Quebec.

By 6:30 p.m. EDT Friday ridge located on a line northeast-southwest
over Lake Nipigon.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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