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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 28 July 2026

Today Tonight and Wednesday.

Wind north 15 knots backing to northwest 15 near noon then diminishing to north 10 near midnight. Wind becoming variable 10 Wednesday morning.

Waves

Issued 03:00 AM EDT 28 July 2026
Today Tonight and Wednesday. Waves 0.5 to 1 metre subsiding to 0.5 or less overnight.

Extended Forecast

Issued 03:00 AM EDT 28 July 2026
Thursday Wind light.
Friday Wind light.
Saturday Wind light.

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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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buoy Buoy
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 3:00 AM EDT 28 July 2026 Today Tonight and Wednesday At 3:00 a.m. EDT today low 1001 mb located over Lake Ontario.
By 3:00 a.m. EDT Wednesday low 1000 mb located over northern New
York State.

At 3:00 a.m. EDT today ridge located on a line north-south over
northwestern Ontario.
By 3:00 a.m. EDT Wednesday ridge located on a line
northeast-southwest over Lake Superior.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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