Georgian Bay


Marine Forecast

Issued 10:30 AM EDT 25 September 2016

Today Tonight and Monday

Strong wind warning in effect.

Wind southeast 10 knots increasing to southeast 15 early this evening and to southeast 25 near midnight. Wind increasing to southeast 30 early Monday morning then diminishing to southwest 20 Monday afternoon.

Showers beginning early Monday morning and ending Monday afternoon.


Issued 10:30 AM EDT 25 September 2016
Today Tonight and Monday Waves one half metre building to one this evening and to 2 to 3 late overnight. Waves subsiding to one Monday evening.

Extended Forecast

Issued 03:00 AM EDT 25 September 2016
Tuesday Wind southwest 25 knots.
Wednesday Wind southwest 15 knots diminishing to light.
Thursday Wind light becoming north 15 knots.

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Weather Conditions

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Map of Great Lakes - Lake Erie and Lake Ontario 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 10:30 AM EDT 25 September 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 10:30 AM EDT 25 September 2016 Today Tonight and Monday At 10:30 a.m. EDT today ridge located from Hudson Bay to Virginia.
By 10:30 a.m. EDT Monday ridge located on a line north-south over
central Quebec.

At 10:30 a.m. EDT today low 1002 mb located over central Manitoba.
By 10:30 a.m. EDT Monday low 997 mb located over northwestern

Great Lakes - Lake Erie and Lake Ontario Area

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