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Georgian Bay

Forecast

Marine Forecast

Issued 06:30 PM EDT 22 September 2021

Tonight and Thursday.

Gale warning in effect.

Wind northeast 30 knots increasing to northeast 35 this evening then diminishing to northeast 30 Thursday morning. Wind diminishing to northeast 20 near noon Thursday and to south 15 Thursday evening.

Rain changing to showers Thursday evening.

Waves

Issued 06:30 PM EDT 22 September 2021
Tonight and Thursday. Waves 2 to 3 metres subsiding to 1 Thursday afternoon and to 0.5 Thursday evening.

Extended Forecast

Issued 06:30 PM EDT 22 September 2021
Friday Wind south 15 knots increasing to south 20 in the morning then veering to west 20 in the afternoon.
Saturday Wind south 20 knots.
Sunday Wind southwest 15 knots veering to west 20.

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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 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

Warnings (In effect)

Gale warning in effect

Georgian Bay

Issued 6:30 PM EDT 22 September 2021

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 22 September 2021 Tonight and Thursday At 6:30 p.m. EDT tonight low 1000 mb located over northeastern Ohio.
By 6:30 p.m. EDT Thursday low 1005 mb located over southern
Lake Huron.

At 6:30 p.m. EDT tonight trough from low located on a line
northeast-southwest over southern Ontario.
By 6:30 p.m. EDT Thursday trough from low located on a line
northeast-southwest over Lake Nipissing.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over Lake Superior.
By 6:30 a.m. EDT Thursday departing ridge located on a line
northeast-southwest over northeastern Ontario.

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