190
FZUS63 KDTX 040727
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
327 AM EDT Thu Sep 4 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 briefly fills in today before a low
pressure system, 29.20 inches, pivots over Lake Michigan tonight.
The system then lifts into The Straits on Friday offering
widespread gusts to gales for Lake Huron. Potential exists for
some showers, mainly over the northern half of Lake Huron.

LCZ460-041530-
Lake St Clair-
327 AM EDT Thu Sep 4 2025

.TODAY...Northwest winds 15 to 20 knots diminishing to 10 to 15
knots late in the morning...then becoming west 5 to 10 knots in the
afternoon. Cloudy early in the morning becoming mostly sunny. Waves
2 feet or less.
.TONIGHT...West winds 5 to 10 knots becoming south 10 to 15 knots
early in the morning. Mostly clear. Waves 2 feet or less.
.FRIDAY...Southwest winds 20 to 25 knots with gusts to 30 knots
veering to the west with gusts to 30 knots early in the afternoon.
Mostly sunny. Waves 3 to 5 feet. Waves occasionally around 7 feet. A
Small Craft Advisory may be needed.
.FRIDAY NIGHT...West winds 15 to 20 knots diminishing to 5 to 10
knots. Partly cloudy. Waves 1 to 3 feet.
.SATURDAY...West winds 5 to 10 knots increasing to 10 to 15 knots in
the afternoon and evening. Partly cloudy. Waves 2 feet or less.
.SUNDAY...Northwest winds 10 to 15 knots. Mostly clear. Waves 2 feet
or less.
.MONDAY...Southeast winds 5 to 10 knots. Clear. Waves 2 feet or
less.

$$

KGK

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

Graphical marine forecasts are available at weather.gov/greatlakes