Georgian Bay


Marine Forecast

Issued 03:00 AM EDT 22 October 2016

Today Tonight and Sunday

Strong wind warning in effect.

Wind north 20 knots backing to northwest 25 this morning then increasing to northwest 30 this afternoon. Wind diminishing to west 15 Sunday afternoon.

Chance of showers today. A few showers Sunday late in the day.


Issued 03:00 AM EDT 22 October 2016
Today Tonight and Sunday Waves one and one half metres building to 2 this morning and to 3 early this evening. Waves subsiding to 2 near midnight and to one Sunday afternoon.

Extended Forecast

Issued 03:00 AM EDT 22 October 2016
Monday Wind north 20 knots.
Tuesday Wind north 20 knots diminishing to light late in the day.
Wednesday Wind light becoming east 15 knots late in the day.

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Weather Conditions

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Map of Great Lakes - Lake Huron marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 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 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 Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Port Weller St. Catharines Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Municipal Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Killarney Western Islands Cove Island Long Point Port Colborne Erieau Point Pelee
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 7 May 2016 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 03:00 AM EDT 22 October 2016

'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.


Technical Marine Synopsis

Issued 3:00 AM EDT 22 October 2016 Today Tonight and Sunday At 3:00 a.m. EDT today low 995 mb located south of Maine.
By 3:00 a.m. EDT Sunday low 982 mb located over eastern Quebec.

At 3:00 a.m. EDT today dissipating ridge located on a line
northeast-southwest over Lake Superior.

At 3:00 a.m. EDT today trough located on a line northwest-southeast
over Lake Winnipeg.
By 3:00 a.m. EDT Sunday trough located on a line northwest-southeast
over western Hudson Bay.

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