512
FZUS63 KDTX 230748
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
348 AM EDT Wed Sep 23 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, 30.70 inches, centers over Quebec today
leading to modest easterly winds over the central Great Lakes. A
weak low pressure system emerges over the northern portion of the
Ohio Valley this morning, and could lead to some light showers
for western Lake Erie. Mainly dry with calmer winds through the
rest of the week, and into the weekend.

LCZ460-231600-
Lake St Clair-
348 AM EDT Wed Sep 23 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING...

.TODAY...East winds 20 to 25 knots diminishing to 15 to 20 knots in
the late morning and afternoon. Partly sunny. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and afternoon.
.TONIGHT...East winds 15 to 20 knots diminishing to 10 to 15 knots
early in the morning. Partly cloudy in the evening then clearing.
Waves 1 to 3 feet building to 2 to 4 feet late in the evening...then
subsiding to 1 to 3 feet after midnight.
.THURSDAY...East winds 10 to 15 knots. Sunny. Waves 2 feet or less.
.THURSDAY NIGHT...East winds 10 to 15 knots. Mostly clear. Waves 2
feet or less.
.FRIDAY...Northeast winds 5 to 10 knots becoming north 10 to 15
knots in the evening. Mostly sunny in the morning becoming clear.
Waves 2 feet or less.
.SATURDAY...Northeast winds 5 to 10 knots. Clear. Waves 2 feet or
less.
.SUNDAY...Northeast winds 5 to 10 knots. Mostly clear. Waves 2 feet
or less.

$$

TF

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

Graphical marine forecasts are available at weather.gov/greatlakes