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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 26 October 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind north 15 knots diminishing to north 10 this afternoon then veering to northeast 10 this evening. Wind veering to east 10 late overnight then increasing to southeast 15 Tuesday morning. Wind increasing to southeast 20 Tuesday afternoon.

Scattered showers Tuesday evening.

Waves

Issued 10:30 AM EDT 26 October 2026
Today Tonight and Tuesday. Waves 1 metre subsiding to 0.5 or less this afternoon then building to 0.5 to 1 near noon Tuesday. Waves building to 1.5 Tuesday evening.

Extended Forecast

Issued 03:00 AM EDT 26 October 2026
Wednesday Wind south 20 to 25 knots diminishing to southwest 15 in the morning.
Thursday Wind southwest 20 knots veering to northwest 15.
Friday Wind northwest 15 knots diminishing to light.

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

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

Ice Forecasts

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

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 10:30 AM EDT 26 October 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 26 October 2026 Today Tonight and Tuesday At 10:30 a.m. EDT today departing cold front located on a line
east-west over eastern Ontario.

At 10:30 a.m. EDT today high 1040 mb located over southern Manitoba.
By 10:30 a.m. EDT Tuesday ridge located on a line
northwest-southeast over Lake Nipissing.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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