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Eastern Lake Superior

Forecast

Marine Forecast

Issued 03:00 AM EST 21 November 2024

Today Tonight and Friday.

Strong wind warning in effect.

Wind northeast 25 knots increasing to northeast 30 early this morning then diminishing to northeast 20 near noon. Wind backing to north 20 this evening then to northwest 20 Friday afternoon.

Periods of rain ending Friday morning.

Waves

Issued 03:00 AM EST 21 November 2024
Today Tonight and Friday. Waves 1 to 1.5 metres building to 2 early this morning then subsiding to 1 to 1.5 this afternoon.

Extended Forecast

Issued 03:00 AM EST 21 November 2024
Saturday Wind northwest 20 knots diminishing to light late in the day.
Sunday Wind light becoming east 15 knots.
Monday Wind east 15 knots backing to north 20 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 27 April 2024 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Eastern Lake Superior

Issued 03:00 AM EST 21 November 2024

'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 EST 21 November 2024 Today Tonight and Friday At 3:00 a.m. EST today low 995 mb located over Sault Ste. Marie.
By 3:00 a.m. EST Friday weakening low 1007 mb located over Ohio.

At 3:00 a.m. EST today low 998 mb located off the East Coast of
the U.S.
By 3:00 a.m. EST Friday low 988 mb located over New York State.

By 3:00 a.m. EST Friday approaching ridge located on a line
northwest-southeast over South Dakota.

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