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Western Lake Superior

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 14 May 2025

Today Tonight and Thursday.

Strong wind warning in effect.

Wind southeast 10 knots increasing to southeast 15 this afternoon then diminishing to east 10 early this evening. Wind increasing to southeast 15 late overnight and to southeast 20 Thursday afternoon. Wind increasing to southeast 25 Thursday evening.

Scattered showers Thursday. Fog patches.

Waves

Issued 10:30 AM EDT 14 May 2025
Today Tonight and Thursday. Waves 0.5 to 1 metre subsiding to 0.5 early this evening then building to 0.5 to 1 late overnight. Waves building to 1 to 1.5 Thursday evening.

Extended Forecast

Issued 03:00 AM EDT 14 May 2025
Friday Wind southeast 20 knots.
Saturday Wind light increasing to northwest 20 knots late in the day.
Sunday Wind north 20 knots.

Ice Forecast*

Issued 12:00 PM EDT 14 May 2025 Today Tonight and Thursday Open water.

*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 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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land station Land Station
Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 14 May 2025 Today Tonight and Thursday

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Strong wind warning in effect

Western Lake Superior

Issued 10:30 AM EDT 14 May 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 EDT 14 May 2025 Today Tonight and Thursday At 10:30 a.m. EDT today ridge located on a line northwest-southeast
over Lake Nipissing.
By 10:30 a.m. EDT Thursday weakening ridge located on a line
northwest-southeast over Lake Nipissing.

At 10:30 a.m. EDT today trough located from Lake of the Woods to
James Bay.
By 10:30 a.m. EDT Thursday trough located from Lake of the Woods
to Lake Nipigon.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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