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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 05 February 2025

Today Tonight and Thursday.

Gale warning in effect.

Wind northwest 15 knots backing to west 15 near noon then diminishing to variable 10 this afternoon. Wind increasing to south 20 this evening then veering to southwest 25 Thursday morning. Wind increasing to west 35 Thursday afternoon then veering to northwest 35 Thursday evening.

Scattered flurries ending this afternoon. Snow beginning near midnight and changing to flurries Thursday afternoon. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Severe freezing spray beginning Thursday evening.

Waves

Issued 03:00 AM EST 05 February 2025
Today Tonight and Thursday. Waves 1.5 metres subsiding to 1 early this morning and to 0.5 early this evening. Waves building to 1.5 near midnight and to 2 near noon Thursday and to 3 to 4 Thursday evening.

Extended Forecast

Issued 03:00 AM EST 05 February 2025
Friday Wind northwest 30 knots diminishing to northwest 20 in the morning.
Saturday Wind light.
Sunday Wind northwest 20 knots.

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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land station Land Station
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)

Gale warning in effect

Eastern Lake Superior

Issued 03:00 AM EST 05 February 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Freezing spray warning in effect

Eastern Lake Superior

Issued 03:00 AM EST 05 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 3:00 AM EST 5 February 2025 Today Tonight and Thursday At 3:00 a.m. EST today ridge located on a line northwest-southeast
over southern Michigan.
By 3:00 a.m. EST Thursday departing ridge located on a line
northwest-southeast over Maine.

By 3:00 a.m. EST Thursday approaching warm front located on a line
east-west over Ohio.

By 3:00 a.m. EST Thursday trough located on a line north-south
over northwestern Ontario.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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