Western Lake Superior, Canada Marine Forecast, Warnings and Alerts

Canada

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Western Lake Superior

Marine Forecast

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday.

Gale warning in effect.

Wind northwest 10 knots backing to southwest 10 this morning then increasing to southeast 15 this afternoon. Wind increasing to southeast 25 this evening then veering to south 30 overnight. Wind increasing to southwest 35 Tuesday morning then veering to west 35 Tuesday afternoon. Wind diminishing to northwest 20 Tuesday evening.

Showers tonight and Tuesday morning.

Winds

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday. Gale warning in effect. Wind northwest 10 knots backing to southwest 10 this morning then increasing to southeast 15 this afternoon. Wind increasing to southeast 25 this evening then veering to south 30 overnight. Wind increasing to southwest 35 Tuesday morning then veering to west 35 Tuesday afternoon. Wind diminishing to northwest 20 Tuesday evening.

Waves

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday. Waves 0.5 metres or less building to 0.5 to 1 early this evening and to 2 to 3 near midnight.

Weather & Visibility

Issued 03:00 AM EDT 14 September 2026

Today Tonight and Tuesday. Showers tonight and Tuesday morning.

Ice Forecasts

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

Warnings (In effect)

Gale warning in effect

Western 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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