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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 07 December 2024

Tonight and Sunday.

Gale warning in effect.

Wind southwest 25 knots increasing to southwest 35 near midnight then veering to west 35 early Sunday morning. Wind diminishing to northwest 20 near noon Sunday and to northwest 15 Sunday evening.

Snow changing to scattered showers near midnight. Visibility 1 mile or less in snow.

Waves

Issued 06:30 PM EST 07 December 2024
Tonight and Sunday. Waves 1.5 metres building to 3 to 4 late overnight then subsiding to 2 to 3 Sunday afternoon. Waves subsiding to 0.5 to 1 Sunday evening.

Extended Forecast

Issued 06:30 PM EST 07 December 2024
Monday Wind northeast 15 knots increasing to northeast 20 in the morning.
Tuesday Wind southeast 20 knots.
Wednesday Wind west 20 knots.

Ice Forecast*

Issued 12:00 PM EST 7 December 2024 Today Tonight and Sunday Open water except 2 tenths new lake ice along parts of the shore.

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

 

[ Canadian Ice Service ]

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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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land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EST 7 December 2024 Today Tonight and Sunday

Ice Coverage

Open water except 2 tenths new lake ice along parts of the shore.

Warnings

Warnings (In effect)

Gale warning in effect

Eastern Lake Ontario

Issued 6:30 PM EST 07 December 2024

'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 EST 7 December 2024 Tonight and Sunday At 6:30 p.m. EST tonight departing ridge located on a line
northwest-southeast over southern Quebec.

At 6:30 p.m. EST tonight low 993 mb located north of Lake Superior.
By 6:30 p.m. EST Sunday low 1002 mb located over the Maritimes.

At 6:30 p.m. EST tonight ridge located on a line north-south over
northern Manitoba.
By 6:30 p.m. EST Sunday ridge located on a line northwest-southeast
over northern Ontario.

At 6:30 p.m. EST tonight low 1003 mb located over northwestern
Alberta.
By 6:30 p.m. EST Sunday low 997 mb located over southern
Saskatchewan.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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