Georgian Bay

Forecast

Marine Forecast

Issued 06:30 PM EDT 21 August 2017

Tonight and Tuesday.

Strong wind warning in effect.

Wind southwest 10 knots increasing to south 15 late overnight and to southwest 20 Tuesday morning. Wind veering to northwest 25 near noon Tuesday.

Chance of showers changing to a few showers early Tuesday morning then to chance of showers Tuesday afternoon and evening. Risk of thunderstorms tonight and Tuesday.

Waves

Issued 06:30 PM EDT 21 August 2017
Tonight and Tuesday. Waves one half metre or less building to one and one half metres near noon Tuesday.

Extended Forecast

Issued 06:30 PM EDT 21 August 2017
Wednesday Wind northwest 25 knots diminishing to northwest 15 late in the day.
Thursday Wind north 15 knots diminishing to light.
Friday Wind light.

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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 27 April 2017 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 6:30 PM EDT 21 August 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.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 21 August 2017 Tonight and Tuesday At 6:30 p.m. EDT tonight departing ridge located on a line
north-south over Maine.

At 6:30 p.m. EDT tonight trough located on a line
northeast-southwest over North Channel.
By 6:30 p.m. EDT Tuesday trough located on a line
northeast-southwest over southern Lake Huron.

At 6:30 p.m. EDT tonight low 1006 mb located over Illinois.
By 6:30 p.m. EDT Tuesday deepening low 991 mb located over southern
Quebec.

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