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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 13 October 2026

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind northeast 20 knots diminishing to northeast 15 late this morning then backing to northwest 15 this afternoon. Wind increasing to northwest 20 this evening then diminishing to northwest 15 early Wednesday morning. Wind diminishing to north 10 Wednesday evening.

Scattered showers ending this evening. Risk of thunderstorms late this morning.

Waves

Issued 10:30 AM EDT 13 October 2026
Today Tonight and Wednesday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 near noon then building to 1 to 1.5 near midnight. Waves subsiding to 0.5 to 1 Wednesday morning.

Extended Forecast

Issued 03:00 AM EDT 13 October 2026
Thursday Wind light increasing to south 15 knots in the morning and to northwest 25 late in the day.
Friday Wind north 35 knots diminishing to northwest 25 late in the day.
Saturday Wind northwest 15 knots backing to southwest 15.

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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)

Strong wind warning in effect

Eastern Lake Superior

Issued 10:30 AM EDT 13 October 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 13 October 2026 Today Tonight and Wednesday At 10:30 a.m. EDT today departing ridge located on a line
northwest-southeast over New Brunswick.

At 10:30 a.m. EDT today low 1004 mb located over northern Lower
Michigan.
By 10:30 a.m. EDT Wednesday low 1006 mb located over southwestern
New Brunswick.

By 10:30 a.m. EDT Wednesday ridge from high located on a line
east-west over Wisconsin.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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