447
FZUS63 KDTX 310020 AAA
GLFSC

Lake St Clair Forecast...UPDATED
National Weather Service Detroit/Pontiac MI
820 PM EDT Wed Jul 30 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...A disturbance passes along a stalled frontal boundary
across the southern Great Lakes tonight into Thursday. High
pressure then gradually expands into the region from the north
and west late Thursday into Friday before taking residence
overhead through this weekend.

LCZ460-310830-
Lake St Clair-
820 PM EDT Wed Jul 30 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE THURSDAY NIGHT...

.TONIGHT...Northeast winds 15 to 20 knots, gusting to 25 knots.
Light showers. Locally heavy rainfall possible early in the
morning. Waves 1 to 3 feet.
.THURSDAY...Northeast winds 15 to 20 knots diminishing to 10 to 15
knots early in the afternoon...then increasing to 15 to 20 knots
late in the afternoon. Showers in the morning...then a chance of
light showers early in the afternoon. Locally heavy rainfall
possible early in the morning. Waves 1 to 3 feet.
.THURSDAY NIGHT...Northeast winds 15 to 20 knots diminishing to 10
to 15 knots after midnight. Mostly clear. Waves 1 to 3 feet.
.FRIDAY...Northeast winds 10 to 15 knots. Sunny. Waves 2 feet or
less.
.FRIDAY NIGHT...North winds 10 to 15 knots. Clear. Waves 2 feet or
less.
.SATURDAY...Northeast winds 5 to 10 knots veering to the east in the
evening. Clear. Waves 2 feet or less.
.SUNDAY...Southeast winds 5 to 10 knots. Clear. Waves 2 feet or
less.
.MONDAY...Southeast winds 5 to 10 knots. Mostly 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