Georgian Bay


Marine Forecast

Issued 10:30 AM EDT 31 July 2015

Today Tonight and Saturday

Strong wind warning in effect.

Wind southwest 15 knots veering to west 15 near noon then increasing to west 20 late overnight. Wind veering to northwest 20 early Saturday morning then diminishing to northwest 15 near noon Saturday. Wind backing to west 15 Saturday afternoon.

Chance of showers late this afternoon and this evening with a risk of thunderstorms.


Issued 10:30 AM EDT 31 July 2015
Today Tonight and Saturday Waves one metre.

Extended Forecast

Issued 03:00 AM EDT 31 July 2015
Sunday Wind west 15 knots diminishing to light in the morning then becoming southwest 15 in the afternoon.
Monday Wind south 20 knots veering to west 20.
Tuesday Wind west 20 knots.

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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 1 June 2015 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 10:30 AM EDT 31 July 2015

'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 31 July 2015 Today Tonight and Saturday At 10:30 a.m. EDT today quasi-stationary low 988 mb located over
Hudson Bay.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over Wyoming.
By 10:30 a.m. EDT Saturday ridge located on a line
northwest-southeast over Iowa.

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