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Our website will be temporary unavailable on May 15, 2024 between 2 to 3 pm EDT.

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Western Lake Superior

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 15 May 2024

Today Tonight and Thursday.

Wind northeast 10 knots becoming variable 10 near noon then becoming northwest 10 early this evening. Wind becoming light near midnight then becoming east 10 late overnight. Wind increasing to east 15 near noon Thursday and to southeast 15 to 20 Thursday evening.

Showers Thursday late in the day.

Waves

Issued 10:30 AM EDT 15 May 2024
Today Tonight and Thursday. Waves 0.5 metres or less building to 0.5 to 1 Thursday evening.

Extended Forecast

Issued 03:00 AM EDT 15 May 2024
Friday Wind southeast 15 knots diminishing to light in the morning.
Saturday Wind light.
Sunday Wind south 15 knots diminishing to 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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buoy Buoy
land station Land Station
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 10:30 AM EDT 15 May 2024 Today Tonight and Thursday At 10:30 a.m. EDT today quasi-stationary trough located on a line
northeast-southwest over New York State.

At 10:30 a.m. EDT today ridge located on a line north-south over
Lake Nipigon.
By 10:30 a.m. EDT Thursday ridge located on a line north-south
over northeastern Ontario.

By 10:30 a.m. EDT Thursday approaching low 1003 mb located over
Minnesota.

Great Lakes - Lake Superior Area

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Marine Weather for Canada

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