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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 09 May 2026

Tonight and Sunday.

Strong wind warning in effect.

Wind northwest 20 knots diminishing to northwest 15 near midnight. Wind northwest 15 Sunday.

Scattered showers this evening. Scattered showers or scattered flurries Sunday.

Waves

Issued 06:30 PM EDT 09 May 2026
Tonight and Sunday. Waves 1 to 1.5 metres subsiding to 0.5 to 1 late overnight.

Extended Forecast

Issued 06:30 PM EDT 09 May 2026
Monday Wind light.
Tuesday Wind southeast 20 knots backing to northeast 15 late in the day.
Wednesday Wind northeast 15 knots backing to northwest 15.

Ice Forecast*

Issued 12:00 PM EDT 9 May 2026 Today Tonight and Sunday 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
Legend:
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 9 May 2026 Today Tonight and Sunday

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 9:42 PM EDT 09 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 9 May 2026 Tonight and Sunday At 6:30 p.m. EDT tonight trough from 998 mb low located on a line
north-south over northeastern Ontario.
By 6:30 p.m. EDT Sunday low 999 mb located over central Quebec.

At 6:30 p.m. EDT tonight ridge located on a line north-south
over Saskatchewan.
By 6:30 p.m. EDT Sunday ridge located on a line north-south over
the Ontario - Manitoba border.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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