Eastern Lake Superior


Marine Forecast

Issued 10:30 AM EDT 23 October 2016

Today Tonight and Monday

Strong wind warning in effect.

Wind north 15 knots increasing to north 20 this afternoon and to north 25 near midnight. Wind backing to northwest 20 Monday afternoon then diminishing to northwest 15 Monday evening.

Chance of showers.


Issued 10:30 AM EDT 23 October 2016
Today Tonight and Monday Waves one half metre building to one early this evening and to 2 late overnight. Waves subsiding to one Monday evening.

Extended Forecast

Issued 03:00 AM EDT 23 October 2016
Tuesday Wind light.
Wednesday Wind southeast 25 knots.
Thursday Wind southeast 20 knots diminishing to 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 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 Municipal 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 EDT 7 May 2016 Forecasts have ended for the season.

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 10:30 AM EDT 23 October 2016

'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.


Technical Marine Synopsis

Issued 10:30 AM EDT 23 October 2016 Today Tonight and Monday At 10:30 a.m. EDT today low 978 mb located over central Quebec.
By 10:30 a.m. EDT Monday low 990 mb located over eastern Quebec.

At 10:30 a.m. EDT today weakening low 1010 mb located over western
By 10:30 a.m. EDT Monday trough located on a line
northeast-southwest over Virginia.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over Saskatchewan.
By 10:30 a.m. EDT Monday ridge located on a line northwest-southeast
over Lake of the Woods.

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