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Eastern Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EST 04 February 2025

Tonight and Wednesday.

Wind northwest 20 knots diminishing to northwest 15 late overnight then backing to west 15 near noon Wednesday. Wind diminishing to variable 10 Wednesday afternoon then increasing to south 20 Wednesday evening.

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

Freezing spray warning in effect.

Freezing spray ending Wednesday morning.

Waves

Issued 06:30 PM EST 04 February 2025
Tonight and Wednesday. Waves 2 metres subsiding to 1 early Wednesday morning and to 0.5 Wednesday evening.

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 3 tenths thin lake ice along parts of the southern and eastern shores. Consolidated medium lake ice in a few bays.

*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 3 tenths thin lake ice along parts of the southern
and eastern shores. Consolidated medium lake ice in a few bays.

Warnings

Warnings (In effect)

Freezing spray warning in effect

Eastern Lake Superior

Issued 6:30 PM EST 04 February 2025

Moderate or severe freezing spray is 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 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.

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