Eastern Lake Superior, Canada Marine Forecast, Warnings and Alerts

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Eastern Lake Superior

Marine Forecast

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday.

Gale warning in effect.

Wind northwest 15 knots diminishing to northwest 10 early this morning then backing to southwest 10 late this morning. Wind increasing to southeast 15 this afternoon and to southeast 25 this evening. Wind increasing to south 35 overnight then veering to southwest 35 Tuesday morning. Wind veering to west 35 Tuesday afternoon then diminishing to northwest 20 Tuesday evening.

Showers overnight and Tuesday with a risk of thunderstorms.

Winds

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday. Gale warning in effect. Wind northwest 15 knots diminishing to northwest 10 early this morning then backing to southwest 10 late this morning. Wind increasing to southeast 15 this afternoon and to southeast 25 this evening. Wind increasing to south 35 overnight then veering to southwest 35 Tuesday morning. Wind veering to west 35 Tuesday afternoon then diminishing to northwest 20 Tuesday evening.

Waves

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less this morning then building to 0.5 to 1 early this evening. Waves building to 2 to 3 near midnight.

Weather & Visibility

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday. Showers overnight and Tuesday with a risk of thunderstorms.

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.

Warnings (In effect)

Gale warning in effect

Eastern Lake Superior

Issued 03:00 AM EDT 14 September 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Technical Marine Synopsis

Issued 3:00 AM EDT 14 September 2026 Today Tonight and Tuesday At 3:00 a.m. EDT today departing cold front located on a line
northeast-southwest over the East Coast of the U.S.

At 3:00 a.m. EDT today high 1024 mb located over Wisconsin.
By 3:00 a.m. EDT Tuesday high 1025 mb located over southern Quebec.

By 3:00 a.m. EDT Tuesday approaching low 991 mb located over
southeastern Manitoba.

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