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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 29 March 2025

Today Tonight and Sunday.

Wind east 25 knots diminishing to northeast 15 near noon then increasing to east 25 this evening. Wind backing to northeast 30 Sunday afternoon.

Scattered flurries ending this morning. Snow overnight and Sunday. Visibility 1 mile or less in snow.

Waves

Issued 03:00 AM EDT 29 March 2025
Today Tonight and Sunday. Over open water waves 2 metres subsiding to 1.5 this afternoon then building to 2 overnight.

Extended Forecast

Issued 03:00 AM EDT 29 March 2025
Monday Wind north 25 knots.
Tuesday Wind north 20 knots diminishing to southeast 15.
Wednesday Wind southeast 30 knots.

Ice Forecast*

Issued 12:00 PM EDT 28 March 2025 Today Tonight and Saturday Open water except 2 tenths thick lake ice near parts of the eastern shore. Consolidated medium lake ice along parts of the shores.

*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 Slate Island - 45136 Lake Of the Woods - 45148 Kenora Airport Royal Island Armstrong Airport Caribou Island Marathon Airport Pukaskwa National Park Thunder Bay Airport Welcome Island Little Flatland Island Sault Ste. Marie Airport Wawa Airport
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 28 March 2025 Today Tonight and Saturday

Ice Coverage

Open water except 2 tenths thick lake ice near parts of the eastern
shore. Consolidated medium lake ice along parts of the shores.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 29 March 2025 Today Tonight and Sunday At 3:00 a.m. EDT today quasi-stationary trough located on a line
east-west over Lake Ontario.

At 3:00 a.m. EDT today quasi-stationary ridge located on a line
east-west over northern Ontario.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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