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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 21 March 2023

Today Tonight and Wednesday.

Wind northeast 15 knots veering to east 15 this evening then to southeast 15 late overnight. Wind increasing to southeast 20 early Wednesday morning then diminishing to south 10 Wednesday afternoon. Wind increasing to southeast 15 Wednesday evening.

Scattered flurries tonight. Scattered showers Wednesday afternoon and evening.

Waves

Issued 10:30 AM EDT 21 March 2023
Today Tonight and Wednesday. Over open water waves 0.5 to 1 metre building to 1 to 1.5 Wednesday morning then subsiding to 0.5 to 1 Wednesday evening.

Extended Forecast

Issued 03:00 AM EDT 21 March 2023
Thursday Wind southeast 15 knots increasing to northwest 25 in the afternoon.
Friday Wind northwest 20 knots diminishing to light.
Saturday Wind east 15 knots increasing to northeast 30 late in the day.

Ice Forecast*

Issued 12:00 PM EDT 21 March 2023 Today Tonight and Wednesday Open water 7 tenths new lake ice including 1 tenth thick lake ice in the extreme northern section. CONSOLIDATED rotten thick lake ice along parts of the northeastern shore.

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

 

[ Canadian Ice Service ]

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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 21 March 2023 Today Tonight and Wednesday

Ice Coverage

Open water 7 tenths new lake ice including 1 tenth thick lake ice in
the extreme northern section. CONSOLIDATED rotten thick lake ice
along parts of the northeastern shore.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 21 March 2023 Today Tonight and Wednesday At 10:30 a.m. EDT today dissipating trough located on a line
northeast-southwest over southern Ontario.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over northeastern Ontario.
By 10:30 a.m. EDT Wednesday ridge located on a line
northwest-southeast over Quebec.

At 10:30 a.m. EDT today low 1008 mb located over Colorado.
By 10:30 a.m. EDT Wednesday low 1007 mb located west of Lake
Superior.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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