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Western Lake Superior


Marine Forecast

Issued 10:30 AM EDT 14 June 2024

Today Tonight and Saturday.

Strong wind warning in effect.

Wind light becoming southwest 10 knots this afternoon then becoming light this evening. Wind becoming south 15 early Saturday morning then backing to southeast 15 near noon Saturday. Wind increasing to south 20 Saturday evening.


Issued 10:30 AM EDT 14 June 2024
Today Tonight and Saturday. Waves 0.5 metres or less building to 0.5 to 1 Saturday morning.

Extended Forecast

Issued 03:00 AM EDT 14 June 2024
Sunday Wind southeast 15 knots increasing to southeast 20 in the morning.
Monday Wind south 15 knots diminishing to light.
Tuesday Wind light increasing to southeast 20 knots.

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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 (In effect)

Strong wind warning in effect

Western Lake Superior

Issued 10:30 AM EDT 14 June 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.


Technical Marine Synopsis

Issued 10:30 AM EDT 14 June 2024 Today Tonight and Saturday At 10:30 a.m. EDT today departing cold front located on a line
northeast-southwest over eastern New York State.

At 10:30 a.m. EDT today high 1020 mb located over northwestern
By 10:30 a.m. EDT Saturday high 1024 mb located over North Channel.

By 10:30 a.m. EDT Saturday approaching low 1001 mb located over

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