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Eastern Lake Superior

Forecast

Marine Forecast

Issued 06:30 PM EDT 23 June 2024

Tonight and Monday.

Wind northwest 15 knots diminishing to west 10 this evening then backing to south 10 Monday morning. Wind increasing to southeast 15 Monday evening.

Showers this evening with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 23 June 2024
Tonight and Monday. Waves 0.5 to 1 metre subsiding to 0.5 or less early Monday morning then building to 0.5 to 1 Monday evening.

Extended Forecast

Issued 06:30 PM EDT 23 June 2024
Tuesday Wind south 20 knots veering to southwest 15 to 20 in the morning then to west 20 late in the day.
Wednesday Wind northwest 15 knots.
Thursday Wind light.

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Weather Conditions

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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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 24 June 2024 Today Tonight and Tuesday At 3:00 a.m. EDT today low 995 mb located east of Montréal.
By 3:00 a.m. EDT Tuesday departing low 1000 mb located over
Nova Scotia.

At 3:00 a.m. EDT today ridge located on a line north-south over
Wisconsin.
By 3:00 a.m. EDT Tuesday ridge located on a line northeast-southwest
over New York State.

At 3:00 a.m. EDT today low 999 mb located over central Saskatchewan.
By 3:00 a.m. EDT Tuesday low 991 mb located over northern Ontario.

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