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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 15 May 2026

Tonight and Saturday.

Strong wind warning in effect.

Wind south 25 knots veering to southwest 25 near midnight then diminishing to southwest 15 early Saturday morning. Wind increasing to west 20 near noon Saturday then diminishing to northwest 15 Saturday evening.

Scattered showers tonight and Saturday morning with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 15 May 2026
Tonight and Saturday. Waves 2 to 3 metres subsiding to 0.5 to 1 Saturday morning then building to 1 to 1.5 Saturday afternoon. Waves subsiding to 0.5 to 1 Saturday evening.

Extended Forecast

Issued 06:30 PM EDT 15 May 2026
Sunday Wind northeast 15 knots veering to southeast 20 late in the day.
Monday Wind southeast 25 knots backing to northeast 20.
Tuesday Wind northeast 25 knots backing to northwest 25.

Ice Forecast*

Issued 12:00 PM EDT 15 May 2026 Today Tonight and Saturday Ice free.

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

 

[ Canadian Ice Service ]

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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 15 May 2026 Today Tonight and Saturday

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 6:30 PM EDT 15 May 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 15 May 2026 Tonight and Saturday At 6:30 p.m. EDT tonight departing ridge located on a line
northeast-southwest over the St. Lawrence River.

At 6:30 p.m. EDT tonight low 988 mb located over northern Ontario.
By 6:30 p.m. EDT Saturday low 988 mb located over northern Quebec.

By 6:30 p.m. EDT Saturday ridge located from Manitoba to Michigan.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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