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Northern Georgian Bay


Marine Forecast

Issued 04:48 AM EDT 14 June 2021

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind variable 10 knots becoming northwest 10 early this morning then veering to north 10 this evening. Wind increasing to north 15 near midnight and to north 20 late overnight. Wind diminishing to north 15 Tuesday morning.

Scattered showers ending near midnight with a risk of thunderstorms early this morning and this evening.


Issued 03:00 AM EDT 14 June 2021
Today Tonight and Tuesday. Waves one half metre building to one half to one metre near midnight.

Extended Forecast

Issued 03:00 AM EDT 14 June 2021
Wednesday Wind north 15 knots backing to west 15 late in the day.
Thursday Wind light becoming south 15 knots late in the day.
Friday Wind southwest 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 Killarney 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 Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 9 May 2021 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Northern Georgian Bay

Issued 05:56 AM EDT 14 June 2021

'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 14 June 2021 Today Tonight and Tuesday At 3:00 a.m. EDT today trough located on a line northwest-southeast
over northern Ontario.
By 3:00 a.m. EDT Tuesday trough located on a line north-south over
central Quebec.

At 3:00 a.m. EDT today ridge located on a line north-south over
eastern Saskatchewan.
By 3:00 a.m. EDT Tuesday ridge located from Lake of the Woods
to Missouri.

Great Lakes - Lake Erie and Lake Ontario Area

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