Western Lake Ontario

Forecast

Marine Forecast

Issued 10:30 AM EST 18 December 2017

Today Tonight and Tuesday.

Gale warning in effect.

Wind light increasing to southwest 15 knots near noon and to southwest 20 this afternoon. Wind increasing to southwest 30 late overnight and to southwest 35 Tuesday morning. Wind diminishing to west 30 Tuesday afternoon.

Periods of snow with a risk of freezing drizzle changing to chance of showers today.

Waves

Issued 10:30 AM EST 18 December 2017
Today Tonight and Tuesday. Waves one half metre building to one this afternoon and to 2 near midnight. Waves building to 3 near noon Tuesday then subsiding to 2 Tuesday evening.

Extended Forecast

Issued 03:00 AM EST 18 December 2017
Wednesday Wind west 30 knots.
Thursday Wind northwest 15 knots diminishing to light.
Friday Wind east 20 knots.

Ice Forecast*

Issued 12:00 PM EST 18 December 2017 Today Tonight and Tuesday Open water except 9 tenths new lake ice including 2 tenths thin lake ice in the Bay Of Quinte.

*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 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 Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Port Weller St. Catharines Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Killarney Western Islands Cove Island Long Point Port Colborne Erieau Point Pelee
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EST 18 December 2017 Today Tonight and Tuesday

Ice Coverage

Open water except 9 tenths new lake ice including 2 tenths thin lake
ice in the Bay Of Quinte.

Warnings

Warnings (In effect)

Gale warning in effect

Western Lake Ontario

Issued 10:30 AM EST 18 December 2017

'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 10:30 AM EST 18 December 2017 Today Tonight and Tuesday At 10:30 a.m. EST today departing ridge located on a line
north-south over Maine.

At 10:30 a.m. EST today low 982 mb located over northeastern
Manitoba.
By 10:30 a.m. EST Tuesday low 980 mb located over southwestern
Hudson Bay.

At 10:30 a.m. EST today dissipating trough located on a line
northwest-southeast over northern Lake Huron.

At 10:30 a.m. EST today trough from low located on a line
northeast-southwest over southern Manitoba.
By 10:30 a.m. EST Tuesday trough from low located on a line
northwest-southeast over Ottawa.

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