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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 24 September 2021

Today Tonight and Saturday.

Strong wind warning in effect.

Wind northwest 10 knots becoming light this morning then becoming south 10 near noon. Wind increasing to west 15 early this evening and to northwest 20 near midnight. Wind increasing to northwest 30 overnight then diminishing to west 20 near noon Saturday. Wind diminishing to northwest 15 Saturday evening.

Periods of rain ending early this morning. Showers tonight Saturday morning and Saturday late in the day.

Waves

Issued 03:00 AM EDT 24 September 2021
Today Tonight and Saturday. Waves 0.5 to 1 metre subsiding to 0.5 or less this morning then building to 0.5 to 1 this evening. Waves building to 2 to 3 overnight then subsiding to 1.5 near noon Saturday.

Extended Forecast

Issued 03:00 AM EDT 24 September 2021
Sunday Wind northwest 15 knots.
Monday Wind north 15 knots diminishing to light late in the day.
Tuesday Wind southwest 15 knots diminishing to light late in the day.

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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 9 May 2021 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 03:00 AM EDT 24 September 2021

'Strong' winds of 20 to 33 knots are 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 EDT 24 September 2021 Today Tonight and Saturday At 3:00 a.m. EDT today low 1006 mb located over northern Lake Huron.
By 3:00 a.m. EDT Saturday low 1002 mb located over Hudson Bay.

At 3:00 a.m. EDT today quasi-stationary ridge located on a line
northeast-southwest over Pennsylvania.

At 3:00 a.m. EDT today trough located on a line north-south over
northwestern Ontario.
By 3:00 a.m. EDT Saturday trough located over Lake Superior.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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