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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 18 October 2021

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind northwest 20 knots backing to west 20 early Tuesday morning then increasing to west 25 Tuesday afternoon.

Waves

Issued 10:30 AM EDT 18 October 2021
Today Tonight and Tuesday. Waves 1 metre building to 1.5 Tuesday morning and to 2 Tuesday evening.

Extended Forecast

Issued 03:00 AM EDT 18 October 2021
Wednesday Wind west 25 knots.
Thursday Wind west 15 knots backing to southwest 20.
Friday Wind southwest 20 knots diminishing to light.

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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

Eastern Lake Ontario

Issued 10:30 AM EDT 18 October 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 10:30 AM EDT 18 October 2021 Today Tonight and Tuesday At 10:30 a.m. EDT today departing low 991 mb located over eastern
Quebec.

At 10:30 a.m. EDT today ridge located from Hudson Bay to Lower
Michigan.
By 10:30 a.m. EDT Tuesday ridge located from James Bay to West
Virginia.

At 10:30 a.m. EDT today trough located from Montana to Hudson Bay.
By 10:30 a.m. EDT Tuesday trough located from Hudson Bay to
Nebraska.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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