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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 16 November 2025

Today Tonight and Monday.

Strong wind warning in effect.

Wind northwest 25 knots diminishing to northwest 15 Monday morning and to north 10 Monday evening.

Scattered flurries.

Waves

Issued 10:30 AM EST 16 November 2025
Today Tonight and Monday. Waves 2 to 3 metres subsiding to 1.5 late overnight and to 1 near noon Monday.

Extended Forecast

Issued 03:00 AM EST 16 November 2025
Tuesday Wind light.
Wednesday Wind light becoming southwest 15 knots.
Thursday Wind southwest 15 knots diminishing to light.

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

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

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 11:02 AM EST 16 November 2025

'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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 16 November 2025 Today Tonight and Monday At 10:30 a.m. EST today low 982 mb located southeast of Maine.
By 10:30 a.m. EST Monday departing low 978 mb located over the
Gulf of St. Lawrence.

At 10:30 a.m. EST today ridge located on a line northwest-southeast
over Minnesota.
By 10:30 a.m. EST Monday ridge located on a line northwest-southeast
over Wisconsin.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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