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Western Lake Ontario

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Marine Forecast

Issued 03:00 AM EDT 17 October 2021

Today Tonight and Monday.

Strong wind warning in effect.

Wind west 20 knots veering to northwest 25 this afternoon then diminishing to north 15 overnight. Wind backing to west 15 near noon Monday then increasing to northwest 20 Monday evening.

Scattered showers ending near noon Monday with a risk of waterspouts.

Waves

Issued 03:00 AM EDT 17 October 2021
Today Tonight and Monday. Waves 1.5 metres subsiding to 1 Monday morning.

Extended Forecast

Issued 03:00 AM EDT 17 October 2021
Tuesday Wind west 20 knots increasing to west 25 in the afternoon.
Wednesday Wind west 15 knots.
Thursday Wind southwest 15 knots increasing to southwest 20 late in the day.

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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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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

Western Lake Ontario

Issued 03:00 AM EDT 17 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 3:00 AM EDT 17 October 2021 Today Tonight and Monday At 3:00 a.m. EDT today low 993 mb located over central Quebec.
By 3:00 a.m. EDT Monday low 992 mb located east of Hudson Bay.

At 3:00 a.m. EDT today ridge located on a line north-south over
eastern Saskatchewan.
By 3:00 a.m. EDT Monday ridge located on a line north-south over
northwestern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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