Western Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EDT 26 March 2015

Tonight and Friday

Wind north 20 knots diminishing to north 15 near midnight and to northeast 10 early Friday morning. Wind becoming light late Friday morning then becoming southwest 10 Friday evening.

Waves

Issued 06:30 PM EDT 26 March 2015
Tonight and Friday Over open water waves one to one and one half metres subsiding to one half metre this evening and to less than one half metre Friday morning.

Extended Forecast

Issued 06:30 PM EDT 26 March 2015
Saturday Wind light becoming southwest 15 knots in the afternoon.
Sunday Wind southwest 30 knots.
Monday Wind northwest 25 knots diminishing to light.

Ice Forecast*

Issued 12:00 PM EDT 26 March 2015 Today Tonight and Friday Open water except 9 tenths of thick lake ice over the eastern. 2 tenths of thick lake ice along parts of the southern shore. Consolidated very thick lake ice in Black Bay and Nipigon Bay. Consolidated thick lake ice including 2 tenths of very thick lake ice in Thunder Bay.

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

 

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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 Cameron Falls Caribou Island Geraldton Airport 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 26 March 2015 Today Tonight and Friday

Ice Coverage

Open water except 9 tenths of thick lake ice over the eastern. 2
tenths of thick lake ice along parts of the southern shore.
Consolidated very thick lake ice in Black Bay and Nipigon Bay.
Consolidated thick lake ice including 2 tenths of very thick lake
ice in Thunder Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 26 March 2015 Tonight and Friday At 6:30 p.m. EDT tonight cold front located on a line east-west
over northern Georgian Bay.
By 6:30 p.m. EDT Friday cold front located from the Eastern Seaboard
to Kentucky.

At 6:30 p.m. EDT tonight weakening high 1030 mb located over
central Manitoba.
By 6:30 p.m. EDT Friday high 1026 mb located over central Lake
Superior.

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