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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 08 June 2026

Today Tonight and Tuesday.

Wind southeast 15 knots diminishing to light near noon Tuesday.

Scattered showers overnight and Tuesday with a risk of thunderstorms. Fog patches forming near midnight.

Waves

Issued 10:30 AM EDT 08 June 2026
Today Tonight and Tuesday. Waves 0.5 to 1 metre subsiding to 0.5 or less Tuesday afternoon.

Extended Forecast

Issued 03:00 AM EDT 08 June 2026
Wednesday Wind light increasing to southeast 15 knots in the morning and to southeast 20 late in the day.
Thursday Wind southeast 20 knots.
Friday Wind southwest 20 knots.

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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 8 June 2026 Today Tonight and Tuesday At 10:30 a.m. EDT today high 1026 mb located over eastern Ontario.
By 10:30 a.m. EDT Tuesday high 1026 mb located over the East Coast
of the U.S.

At 10:30 a.m. EDT today trough located on a line north-south over
southern Manitoba.
By 10:30 a.m. EDT Tuesday trough located on a line north-south
over northern Ontario.

By 10:30 a.m. EDT Tuesday approaching low 1010 mb located over
Lower Michigan.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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