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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 14 June 2026

Today Tonight and Monday.

Strong wind warning in effect.

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

Showers this morning.

Waves

Issued 10:30 AM EDT 14 June 2026
Today Tonight and Monday. Waves 0.5 metres or less building to 1 to 1.5 this afternoon then subsiding to 1 Monday morning.

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

Southern Georgian Bay

Issued 10:30 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 10:30 AM EDT 14 June 2026 Today Tonight and Monday At 10:30 a.m. EDT today trough located from James Bay to Lake
Simcoe then to Lake St. Clair.
By 10:30 a.m. EDT Monday trough located on a line
northeast-southwest over the Eastern Seaboard.

At 10:30 a.m. EDT today low 996 mb located over eastern Hudson Bay.
By 10:30 a.m. EDT Monday low 998 mb located over northern Hudson
Bay.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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