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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 13 May 2024

Today Tonight and Tuesday.

Wind southwest 10 knots increasing to southwest 15 near noon then diminishing to west 10 this evening. Wind veering to north 10 early Tuesday morning then backing to northwest 10 Tuesday afternoon.

Scattered showers ending Tuesday morning. Risk of thunderstorms late this morning.

Waves

Issued 10:30 AM EDT 13 May 2024
Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less near midnight.

Extended Forecast

Issued 03:00 AM EDT 13 May 2024
Wednesday Wind northeast 15 knots backing to northwest 15 in the afternoon.
Thursday Wind northeast 15 knots diminishing to light.
Friday Wind southeast 15 knots becoming northwest 15 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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land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 27 April 2024 Forecasts have ended for the season.
Warnings

Watches (In effect)

Squall watch in effect

Southern Georgian Bay

Issued 1:12 PM EDT 13 May 2024 Conditions are favourable for the development of squalls with wind gusts up to 45 knots, frequent lightning and hail.

Thunderstorms are expected to develop along a stalled front this afternoon. Wind gusts up to 45 knots will be possible as well as up to nickel sized hail.

Large hail can damage vessels and cause injury. Vessels without lightning protection should make their way to shore immediately.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 13 May 2024 Today Tonight and Tuesday At 10:30 a.m. EDT today low 1001 mb located over James Bay.
By 10:30 a.m. EDT Tuesday low 1006 mb located east of James Bay.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over North Channel.
By 10:30 a.m. EDT Tuesday trough located on a line
northeast-southwest over Lake Ontario.

At 10:30 a.m. EDT today ridge located on a line north-south over
Manitoba.
By 10:30 a.m. EDT Tuesday ridge located on a line
northwest-southeast over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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