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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 14 June 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind west 10 knots increasing to west 15 this morning and to west 20 this afternoon. Wind veering to northwest 20 early this evening then diminishing to northwest 15 Monday morning. Wind backing to southwest 15 near noon Monday.

Showers and fog patches ending early this morning with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 14 June 2026
Today Tonight and Monday. Waves 0.5 metres or less building to 1 near noon.

Extended Forecast

Issued 03:00 AM EDT 14 June 2026
Tuesday Wind southwest 15 knots diminishing to light in the morning then becoming south 15 late in the day.
Wednesday Wind south 15 knots diminishing to light.
Thursday Wind southeast 25 knots becoming west 25 late in the day.

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

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

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Northern Georgian Bay

Issued 03:00 AM EDT 14 June 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 14 June 2026 Today Tonight and Monday At 3:00 a.m. EDT today trough located on a line northeast-southwest
over northeastern Ontario.
By 3:00 a.m. EDT Monday trough located on a line northeast-southwest
over eastern Ontario.

At 3:00 a.m. EDT today low 996 mb located over eastern Hudson Bay.
By 3:00 a.m. EDT Monday low 998 mb located over central Hudson Bay.

At 3:00 a.m. EDT today departing ridge located on a line
northeast-southwest over Pennsylvania.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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