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Eastern Lake Ontario

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 12 May 2021

Today Tonight and Thursday.

Strong wind warning in effect.

Wind west 15 knots increasing to west 20 near noon then diminishing to northwest 15 this evening. Wind diminishing to northwest 10 late overnight then increasing to west 15 Thursday morning.

Waves

Issued 10:30 AM EDT 12 May 2021
Today Tonight and Thursday. Waves one half to one metre building to one to one and one half metres early this afternoon then subsiding to one half metre near midnight. Waves building to one near noon Thursday.

Extended Forecast

Issued 03:00 AM EDT 12 May 2021
Friday Wind light becoming southwest 15 knots in the afternoon.
Saturday Wind light.
Sunday Wind light.

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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

Eastern Lake Ontario

Issued 10:30 AM EDT 12 May 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 12 May 2021 Today Tonight and Thursday At 10:30 a.m. EDT today departing low 1008 mb located over Nova
Scotia.

At 10:30 a.m. EDT today high 1030 mb located over eastern Iowa.
By 10:30 a.m. EDT Thursday high 1025 mb located over Illinois.

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