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Western Lake Superior

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 04 February 2025

Tonight and Wednesday.

Wind northwest 15 knots diminishing to southwest 10 near noon Wednesday then increasing to south 20 Wednesday evening.

Scattered flurries ending Wednesday morning. Visibility as low as 1 mile in flurries.

Risk of freezing spray tonight and Wednesday morning.

Waves

Issued 06:30 PM EST 04 February 2025
Tonight and Wednesday. Waves 1 metre subsiding to 0.5 Wednesday afternoon.

Extended Forecast

Issued 06:30 PM EST 04 February 2025
Thursday Wind south 20 knots increasing to west 35 in the afternoon.
Friday Wind northwest 30 knots diminishing to northwest 15 late in the day.
Saturday Wind light.

Ice Forecast*

Issued 12:00 PM EST 4 February 2025 Today Tonight and Wednesday Open water except 7 tenths thin lake ice including 3 tenths medium lake ice along parts of the southern shores. 7 tenths medium lake ice in Thunder Bay. Consolidated thick lake ice in Black Bay, Nipigon Bay and Chequamegon 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 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 EST 4 February 2025 Today Tonight and Wednesday

Ice Coverage

Open water except 7 tenths thin lake ice including 3 tenths medium
lake ice along parts of the southern shores. 7 tenths medium lake
ice in Thunder Bay. Consolidated thick lake ice in Black Bay,
Nipigon Bay and Chequamegon Bay.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EST 4 February 2025 Tonight and Wednesday At 6:30 p.m. EST tonight ridge located on a line northwest-southeast
over southern Manitoba.
By 6:30 p.m. EST Wednesday departing ridge located on a line
northwest-southeast over New York State.

By 6:30 p.m. EST Wednesday approaching warm front located on a
line east-west over Kentucky.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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