Georgian Bay


Marine Forecast

Issued 10:30 AM EST 05 December 2016

Today Tonight and Tuesday

Wind west 20 knots backing to southwest 15 early this evening then diminishing to light near midnight. Wind increasing to southeast 15 early Tuesday morning and to southeast 30 Tuesday afternoon.

Chance of showers today and this evening. A few showers beginning Tuesday evening.


Issued 10:30 AM EST 05 December 2016
Today Tonight and Tuesday Waves one metre subsiding to less than one half metre late overnight then building to one Tuesday morning. Waves building to 2 Tuesday evening.

Extended Forecast

Issued 03:00 AM EST 05 December 2016
Wednesday Wind west 30 knots.
Thursday Wind west 25 knots veering to north 20.
Friday Wind north 20 knots.

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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.

No watches or warnings in effect.


Technical Marine Synopsis

Issued 10:30 AM EST 5 December 2016 Today Tonight and Tuesday At 10:30 a.m. EST today trough located on a line northwest-southeast
over Lake Superior.
By 10:30 a.m. EST Tuesday weakening trough located on a line
northeast-southwest over Hudson Bay.

At 10:30 a.m. EST today high located over Kentucky.
By 10:30 a.m. EST Tuesday high located over Vermont.

At 10:30 a.m. EST today low 999 mb located over South Dakota.
By 10:30 a.m. EST Tuesday low 994 mb located over northern

Great Lakes - Lake Huron Area

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