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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 29 April 2025

Today Tonight and Wednesday.

Gale warning in effect.

Wind south 25 knots veering to southwest 25 early this morning then increasing to west 35 early this evening. Wind diminishing to northwest 30 late this evening and to north 15 near midnight. Wind diminishing to variable 10 Wednesday morning.

Scattered showers and fog patches ending this evening with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 29 April 2025
Today Tonight and Wednesday. Waves 1 to 1.5 metres building to 2 early this evening then subsiding to 1 overnight. Waves subsiding to 0.5 or less Wednesday morning.

Extended Forecast

Issued 03:00 AM EDT 29 April 2025
Thursday Wind light increasing to east 20 knots late in the day.
Friday Wind east 20 knots becoming west 20.
Saturday Wind light.

Ice Forecast*

Issued 12:00 PM EDT 28 April 2025 Today Tonight and Tuesday 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 28 April 2025 Today Tonight and Tuesday

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

Georgian Bay

Issued 03:00 AM EDT 29 April 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 3:00 AM EDT 29 April 2025 Today Tonight and Wednesday At 3:00 a.m. EDT today low 997 mb located over eastern Lake
Superior.
By 3:00 a.m. EDT Wednesday departing low 991 mb located over
eastern Quebec.

At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over Manitoba.
By 3:00 a.m. EDT Wednesday ridge located on a line
northeast-southwest over Whitefish Bay.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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