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FZUS63 KDTX 031352
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
952 AM EDT Wed Sep 3 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...Low pressure, 29.60 inches, is forecast to develop
over western Lake Superior today. This system will move into
northern Ontario while driving a strong cold front across Lake
Huron tonight triggering showers and a few thunderstorms. A
second low pressure system, 29.40 inches, will bring potential
for gales on Friday.

LCZ460-032200-
Lake St Clair-
952 AM EDT Wed Sep 3 2025

.REST OF TODAY...Southwest winds 10 to 15 knots becoming south 15 to
20 knots in the afternoon. Mostly sunny. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15
knots in the late evening and early morning...then increasing to 15
to 20 knots early in the morning. A chance of thunderstorms in the
evening. Rain showers likely late in the evening...then showers
after midnight. Waves 1 to 3 feet.
.THURSDAY...Northwest winds 10 to 15 knots becoming west 5 to 10
knots early in the afternoon. Mostly cloudy early in the morning
then clearing. Showers early in the morning. Waves 2 feet or less.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots becoming south 15 to
20 knots after midnight. Mostly clear. Waves 2 feet or less.
.FRIDAY...Southwest winds to 30 knots with isolated gusts to 35
knot gales becoming west 20 to 25 knots in the evening. Partly
sunny in the morning becoming mostly clear. Waves 2 to 4 feet.
.SATURDAY...West winds 10 to 15 knots. Mostly clear. Waves 2 feet or
less.
.SUNDAY...Northwest winds 10 to 15 knots. Mostly clear. Waves 2 feet
or less.

$$

MV

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

Graphical marine forecasts are available at weather.gov/greatlakes