FZUS63 KDTX 091357 GLFSC Lake St Clair Forecast National Weather Service Detroit/Pontiac MI 957 AM EDT Fri May 9 2025 Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. .SYNOPSIS...High pressure of 30.30 inches will slowly drop south across the central Great Lakes region through tonight. A quick moving cold front pushes a trough of 30.10 inches south across the region on Saturday, followed by high pressure of 30.40 inches building into the central and eastern Great Lakes for the end of the weekend. This secondary area of high pressure traverses the East Coast into Tuesday. LCZ460-092200- Lake St Clair- 957 AM EDT Fri May 9 2025 .REST OF TODAY...North winds 5 to 10 knots. Sunny. Waves 2 feet or less. .TONIGHT...Northeast winds 5 to 10 knots veering to the southwest after midnight. Clear. Waves 2 feet or less. .SATURDAY...Southwest winds 5 to 10 knots becoming northwest 10 to 15 knots early in the afternoon. Mostly sunny. Waves 2 feet or less. .SATURDAY NIGHT...North winds 15 to 20 knots diminishing to 10 to 15 knots in the late evening and overnight. Clear. Waves 2 feet or less. .SUNDAY...East winds 5 to 10 knots veering to the southeast in the evening. Clear. Waves 2 feet or less. .MONDAY...Southeast winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. .TUESDAY...Southeast winds 10 to 15 knots. Mostly cloudy with a chance of showers. Waves 2 feet or less. $$ SF Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc Graphical marine forecasts are available at weather.gov/greatlakes