Lake Superior
Forecast
Marine Forecast
Issued 06:30 PM EDT 22 September 2026
Tonight and Wednesday.
Wind northeast 10 knots increasing to east 15 near midnight then diminishing to southeast 10 early Wednesday morning. Wind increasing to southeast 15 Wednesday evening.
Waves
Issued 06:30 PM EDT 22 September 2026
Tonight and Wednesday.
Waves 0.5 metres building to 0.5 to 1 late overnight then
subsiding to 0.5 Wednesday morning.
Extended Forecast
Issued 06:30 PM EDT 22 September 2026
Thursday
Wind south 15 knots.
Friday
Wind south 15 knots diminishing to
light.
Saturday
Wind light.
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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 17 May 2026 Forecasts have ended for the season.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 10:30 AM EDT 22 September 2026 Today Tonight and Wednesday At 10:30 a.m. EDT today quasi-stationary high 1032 mb located overcentral Quebec.
Great Lakes - Lake Superior Area
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