Eastern Lake Superior, Canada Marine Forecast, Warnings and Alerts

Canada

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Current Conditions

Canada 7 Day High and Low Temperatures Forecast

10 Day Forecast

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Eastern Lake Superior

Marine Forecast

Issued 10:30 AM EDT 26 March 2026

Today Tonight and Friday.

Wind north 20 knots diminishing to north 15 this evening and to north 10 late overnight. Wind becoming variable 10 early Friday morning then increasing to northwest 15 Friday afternoon. Wind increasing to northwest 20 Friday evening.

Snow this morning. Scattered flurries Friday afternoon and evening. Visibility 1 mile or less in snow.

Winds

Issued 10:30 AM EDT 26 March 2026

Today Tonight and Friday. Wind north 20 knots diminishing to north 15 this evening and to north 10 late overnight. Wind becoming variable 10 early Friday morning then increasing to northwest 15 Friday afternoon. Wind increasing to northwest 20 Friday evening.

Waves

Issued 10:30 AM EDT 26 March 2026

Today Tonight and Friday. Over open water waves 1 to 1.5 metres subsiding to 0.5 to 1 near midnight and to 0.5 or less early Friday morning. Waves building to 1 Friday evening.

Weather & Visibility

Issued 10:30 AM EDT 26 March 2026

Today Tonight and Friday. Snow this morning. Scattered flurries Friday afternoon and evening. Visibility 1 mile or less in snow.

Ice Forecasts

Issued 12:00 PM EDT 25 March 2026 Today Tonight and Thursday

Ice Coverage

1 tenth thick lake ice except 7 tenths thin lake ice including 3
tenths thick lake ice along parts of the shores and in Keweenaw Bay.
Consolidated thick lake ice along parts of the southern shore.

No watches or warnings in effect.

Technical Marine Synopsis

Issued 10:30 AM EDT 26 March 2026 Today Tonight and Friday At 10:30 a.m. EDT today trough located from the St. Lawrence River
to Kansas.
By 10:30 a.m. EDT Friday departing trough located on a line
northeast-southwest over the Eastern Seaboard.

At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over Alberta.
By 10:30 a.m. EDT Friday ridge located on a line east-west over
northern Ontario.

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