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Western Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EDT 18 March 2024

Tonight and Tuesday.

Wind southwest 15 knots increasing to southwest 20 this evening then veering to northwest 15 early Tuesday morning. Wind increasing to northwest 25 Tuesday afternoon and to northwest 30 Tuesday evening.

Scattered flurries changing to snow this evening then to scattered flurries Tuesday morning. Visibility 1 mile or less in snow.

Waves

Issued 06:30 PM EDT 18 March 2024
Tonight and Tuesday. Waves 1 metre building to 1 to 1.5 near midnight and to 2 to 3 Tuesday evening.

Extended Forecast

Issued 06:30 PM EDT 18 March 2024
Wednesday Wind northwest 35 knots diminishing to northwest 30 in the morning and to northwest 20 late in the day.
Thursday Wind northwest 15 knots diminishing to light.
Friday Wind light increasing to northwest 20 knots late in the day.

Ice Forecast*

Issued 12:00 PM EDT 18 March 2024 Today Tonight and Tuesday Open water except CONSOLIDATED rotten thick lake ice in Black Bay, Nipigon Bay, and parts of Thunder Bay.

*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 Mid Superior - 45001 East Superior - 45004 West Superior - 45006 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 18 March 2024 Today Tonight and Tuesday

Ice Coverage

Open water except CONSOLIDATED rotten thick lake ice in Black Bay,
Nipigon Bay, and parts of Thunder Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 18 March 2024 Tonight and Tuesday At 6:30 p.m. EDT tonight departing trough located on a line
east-west over Lake Erie.

At 6:30 p.m. EDT tonight dissipating ridge located on a line
northeast-southwest over Lake Superior.

At 6:30 p.m. EDT tonight low 1002 mb located over northern Manitoba.
By 6:30 p.m. EDT Tuesday low 999 mb located over northeastern
Ontario.

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