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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 10 October 2026

Today Tonight and Sunday.

Gale warning in effect.

Wind southeast 35 knots diminishing to southeast 30 early this evening then veering to south 25 late this evening. Wind diminishing to south 15 Sunday afternoon.

Waves

Issued 10:30 AM EDT 10 October 2026
Today Tonight and Sunday. Waves 3 metres subsiding to 1.5 early Sunday morning and to 0.5 to 1 Sunday evening.

Extended Forecast

Issued 03:00 AM EDT 10 October 2026
Monday Wind south 15 knots increasing to northeast 25 in the morning.
Tuesday Wind northeast 20 knots diminishing to light late in the day.
Wednesday Wind light.

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Map of Great Lakes - Lake Superior marine weather areas Royal Island Kenora Airport Sault Ste. Marie Airport Armstrong Airport Caribou Island Marathon Airport Pukaskwa National Park Wawa Airport Thunder Bay Airport Welcome Island Little Flatland Island 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)

Gale warning in effect

Eastern Lake Superior

Issued 10:30 AM EDT 10 October 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.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 10 October 2026 Tonight and Sunday At 6:30 p.m. EDT tonight departing high 1032 mb located over
New Hampshire.

At 6:30 p.m. EDT tonight low 995 mb located over northwestern
Minnesota.
By 6:30 p.m. EDT Sunday low 1004 mb located over central Quebec.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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