Eastern Lake Superior
Forecast
Marine Forecast
Issued 10:30 AM EDT 19 July 2025
Today Tonight and Sunday.
Wind light becoming northwest 10 knots early this evening then backing to west 10 Sunday morning.
Scattered showers ending this evening. Fog patches.
Waves
Issued 10:30 AM EDT 19 July 2025
Today Tonight and Sunday.
Waves 0.5 metres or less.
Extended Forecast
Issued 03:36 AM EDT 19 July 2025
Monday
Wind light.
Tuesday
Wind light becoming southeast 15 knots late in
the day.
Wednesday
Wind south 15 to 20 knots diminishing to
light late in the day.
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Weather Conditions
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Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 19 July 2025 Tonight and Sunday At 6:30 p.m. EDT tonight trough located on a linenortheast-southwest over Lower Michigan.
By 6:30 p.m. EDT Sunday departing trough located over the East
Coast of the U.S.
At 6:30 p.m. EDT tonight high 1017 mb located over Lake Winnipeg.
By 6:30 p.m. EDT Sunday building high 1019 mb located over Lake
Superior.
Great Lakes - Lake Superior Area
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