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Western Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EDT 05 June 2026

Tonight and Saturday.

Wind light becoming northwest 10 knots early Saturday morning then backing to west 10 near noon Saturday. Wind becoming light Saturday evening.

Scattered showers this evening with a risk of thunderstorms. Fog patches.

Waves

Issued 06:30 PM EDT 05 June 2026
Tonight and Saturday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 05 June 2026
Sunday Wind light.
Monday Wind southeast 15 knots.
Tuesday Wind southeast 15 knots diminishing to light late in the day.

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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 6:30 PM EDT 5 June 2026 Tonight and Saturday At 6:30 p.m. EDT tonight departing ridge located on a line
northwest-southeast over eastern Quebec.

At 6:30 p.m. EDT tonight low 1005 mb located over northwestern
Ontario.
By 6:30 p.m. EDT Saturday low 1000 mb located over central Quebec.

At 6:30 p.m. EDT tonight ridge located on a line north-south
over Manitoba.
By 6:30 p.m. EDT Saturday ridge located on a line north-south over
northern Ontario.

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