Southern Georgian Bay


Marine Forecast

Issued 03:00 AM EDT 22 July 2017

Today Tonight and Sunday.

Strong wind warning in effect.

Wind west 10 knots becoming light this morning then becoming east 15 Sunday morning. Wind becoming variable 15 Sunday afternoon then increasing to northeast 20 Sunday evening.

Chance of showers today and Sunday afternoon and evening with risk of thunderstorms.


Issued 03:00 AM EDT 22 July 2017
Today Tonight and Sunday. Waves one half metre or less building to one half to one metre Sunday morning.

Extended Forecast

Issued 03:00 AM EDT 22 July 2017
Monday Wind northeast 25 knots diminishing to north 15 in the afternoon and to light late in the day.
Tuesday Wind light.
Wednesday Wind south 15 knots.

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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 27 April 2017 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Southern Georgian Bay

Issued 03:00 AM EDT 22 July 2017

'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 July 2017 Today Tonight and Sunday At 3:00 a.m. EDT today ridge located from Lake Nipigon to Lake
Nipigon then to Pennsylvania.
By 3:00 a.m. EDT Sunday ridge located from Hudson Bay to James
Bay then to Quebec.

At 3:00 a.m. EDT today trough located from North Dakota to Iowa.
By 3:00 a.m. EDT Sunday trough located from Wisconsin to Lake Erie
then to Pennsylvania.

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