Eastern Lake Superior

Forecast

Marine Forecast

Issued 10:30 AM EDT 23 April 2017

Today Tonight and Monday

Wind northwest 20 knots veering to north 15 this afternoon then diminishing to northeast 10 near midnight. Wind increasing to east 15 early Monday morning and to east 25 near noon Monday.

A few flurries ending near noon. A few flurries Monday morning.

Waves

Issued 10:30 AM EDT 23 April 2017
Today Tonight and Monday Waves 2 metres subsiding to one early this evening and to one half metre near midnight. Waves building to one early Monday morning and to 2 Monday afternoon.

Extended Forecast

Issued 03:00 AM EDT 23 April 2017
Tuesday Wind southeast 25 knots diminishing to north 20 late in the day.
Wednesday Wind north 20 knots increasing to northeast 35 late in the day.
Thursday Wind northeast 35 knots diminishing to south 30.

Ice Forecast*

Issued 12:00 PM EDT 23 April 2017 Today Tonight and Monday Open water except 5 tenths of rotten thick lake ice in the western section of Nipigon Bay.

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

 

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Superior marine weather areas Mid Superior - 45001 East Superior - 45004 West Superior - 45006 Slate Island - 45136 Lake Of the Woods - 45148 Royal Island Armstrong Airport Caribou Island Marathon Airport Pukaskwa National Park Thunder Bay Airport Welcome Island Little Flatland Island Sault Ste. Marie Airport Wawa Airport Kenora Airport
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 23 April 2017 Today Tonight and Monday

Ice Coverage

Open water except 5 tenths of rotten thick lake ice in the western
section of Nipigon Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 23 April 2017 Today Tonight and Monday At 10:30 a.m. EDT today ridge located on a line east-west over
Lake Erie.
By 3:00 a.m. EDT Monday dissipating ridge located on a line
east-west over Pennsylvania.

At 10:30 a.m. EDT today trough located on a line northeast-southwest
over Lake Huron.
By 10:30 a.m. EDT Monday departing trough located on a line
northeast-southwest over the Maritimes.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over northwestern Ontario.
By 10:30 a.m. EDT Monday ridge located on a line northwest-southeast
over northwestern Quebec.

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