620
FZUS63 KDTX 110729
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
329 AM EDT Fri Sep 11 2026

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, 30.00 inches, parked over the central
Great Lakes today. Low pressure, 29.30 inches, lifting over
northern Ontario then drags a cold front across the central Great
Lakes late Saturday- Sunday.

LCZ460-111530-
Lake St Clair-
329 AM EDT Fri Sep 11 2026

.TODAY...Northeast winds 5 to 10 knots becoming east. Sunny.
Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots increasing to 10 to 15
knots by midnight...then diminishing to 5 to 10 knots early in the
morning. Mostly clear. Waves 2 feet or less.
.SATURDAY...South winds 5 to 10 knots. Partly sunny. Waves 2 feet or
less.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots veering to the west
after midnight. Mostly clear. Waves 2 feet or less.
.SUNDAY...Northwest winds 5 to 10 knots becoming north 15 to 20
knots. Mostly sunny in the morning becoming partly cloudy. Waves 2
feet or less.
.MONDAY...Southeast winds 15 to 20 knots. Partly cloudy. Waves 2
feet or less.
.TUESDAY...West winds 20 to 25 knots with gusts to 30 knots. Partly
cloudy. Showers likely. Waves 1 to 3 feet. A Small Craft Advisory
may be needed.

$$

SF

Experimental modernized open lake forecast is available online at
weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes