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Eastern Lake Superior

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 24 September 2021

Tonight and Saturday.

Strong wind warning in effect.

Wind south 10 knots increasing to southeast 15 this evening except northwest 10 over western sections. Wind becoming southeast 25 near midnight except northwest 30 over western sections. Wind becoming northwest 30 late overnight then diminishing to west 20 near noon Saturday. Wind diminishing to west 10 Saturday evening.

Showers tonight and Saturday morning. Scattered showers Saturday late in the day.

Waves

Issued 06:30 PM EDT 24 September 2021
Tonight and Saturday. Waves 0.5 metres or less building to 0.5 to 1 this evening and to 2 to 3 late overnight. Waves subsiding to 1.5 near noon Saturday and to 1 Saturday afternoon.

Extended Forecast

Issued 06:30 PM EDT 24 September 2021
Sunday Wind northwest 15 knots.
Monday Wind northwest 15 knots diminishing to light.
Tuesday Wind light.

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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 6:30 PM 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 6:30 PM EDT 24 September 2021 Tonight and Saturday At 6:30 p.m. EDT tonight low 1000 mb located near James Bay.
By 6:30 p.m. EDT Saturday departing low 998 mb located over
Hudson Bay.

At 6:30 p.m. EDT tonight cold front located on a line north-south
over western Lake Superior.
By 6:30 p.m. EDT Saturday cold front located on a line north-south
over central Lake Ontario.

Great Lakes - Lake Superior Area

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