542
FZUS63 KDTX 120818 CCA
GLFSC

Lake St Clair Forecast...CORRECTED
National Weather Service Detroit/Pontiac MI
418 AM EDT Tue May 12 2026

Corrected to add thunderstorms to the forecast for tonight.

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 departs and washes out across New
England this morning which will support southeast flow. Low
pressure, 29.70 inches, then enters lower Michigan tonight,
bringing stronger winds along with showers and thunderstorms.

LCZ460-121600-
Lake St Clair-
418 AM EDT Tue May 12 2026

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

.TODAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Mostly sunny in the morning becoming mostly
cloudy. Waves 2 feet or less.
.TONIGHT...South winds 15 to 25 knots veering to the southwest
early in the morning. Mostly cloudy. A chance of showers early in
the evening then showers likely with a chance of thunderstorms. Waves
1 to 3 feet.
.WEDNESDAY...West winds 15 to 25 knots. Partly sunny. Waves 1 to
3 feet.
.WEDNESDAY NIGHT...Northwest winds 15 to 20 knots. Mostly cloudy.
Waves 1 to 3 feet.
.THURSDAY...North winds 15 to 20 knots diminishing to 10 to 15 knots
in the evening. Partly cloudy then clearing. Waves 1 to 3 feet.
.FRIDAY...South winds 10 to 15 knots. Partly cloudy. Waves 2 feet or
less.
.SATURDAY...West winds 10 to 15 knots. Mostly clear. Waves 2 feet or
less.

$$

BT

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

Graphical marine forecasts are available at weather.gov/greatlakes