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Georgian Bay

Forecast

Marine Forecast

Issued 03:00 AM EDT 30 July 2021

Today Tonight and Saturday.

Strong wind warning in effect.

Wind north 25 knots diminishing to northwest 15 near noon then backing to west 15 this evening. Wind backing to southwest 15 Saturday morning then diminishing to northwest 10 Saturday evening.

Scattered showers Saturday with a risk of thunderstorms.

Waves

Issued 03:00 AM EDT 30 July 2021
Today Tonight and Saturday. Waves one and one half metres subsiding to one this afternoon and to one half metre Saturday evening.

Extended Forecast

Issued 03:00 AM EDT 30 July 2021
Sunday Wind northwest 15 knots.
Monday Wind northwest 15 knots backing to southwest 15.
Tuesday Wind southwest 15 knots diminishing to light late in the day.

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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

Warnings (In effect)

Strong wind warning in effect

Georgian Bay

Issued 03:00 AM EDT 30 July 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 30 July 2021 Today Tonight and Saturday At 3:00 a.m. EDT today cold front located on a line
northeast-southwest over southern Ontario.
By 3:00 a.m. EDT Saturday departing cold front located on a line
northeast-southwest over Nova Scotia.

At 3:00 a.m. EDT today ridge from 1022 mb high located from
Minnesota to Hudson Bay.
By 3:00 a.m. EDT Saturday ridge from 1021 mb high located from
Illinois to Ottawa.

Great Lakes - Lake Erie and Lake Ontario Area

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