Georgian Bay


Marine Forecast

Issued 06:30 PM EDT 31 August 2016

Tonight and Thursday

Strong wind warning in effect.

Wind northwest 20 knots diminishing to north 15 near midnight then increasing to northeast 20 Thursday evening.

Chance of showers overnight and Thursday morning with a risk of waterspouts.


Issued 06:30 PM EDT 31 August 2016
Tonight and Thursday Waves one and one half metres subsiding to one late overnight.

Extended Forecast

Issued 06:30 PM EDT 31 August 2016
Friday Wind northeast 20 knots diminishing to light in the afternoon.
Saturday Wind light.
Sunday Wind light.

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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 6:30 PM EDT 31 August 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 6:30 PM EDT 31 August 2016 Tonight and Thursday At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over Lake Ontario.
By 6:30 p.m. EDT Thursday departing trough located off the East
Coast of the U.S.

At 6:30 p.m. EDT tonight ridge located on a line north-south over
the Ontario - Manitoba border.
By 6:30 p.m. EDT Thursday ridge located on a line
northeast-southwest over Lake Superior.

Great Lakes - Lake Huron Area

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