521
FZUS63 KDTX 091939
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
339 PM EDT Sat May 9 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...Ongoing passage of a cold front to back winds from
west-southwest to northwest this evening. High pressure builds in
behind the front late tonight and overnight, leading to lighter
winds.

LCZ460-100345-
Lake St Clair-
339 PM EDT Sat May 9 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.TONIGHT...West winds 10 to 15 knots veering to the north after
midnight...then diminishing to 5 to 10 knots early in the morning.
Partly cloudy until early morning then clearing. Waves 2 feet or
less.
.SUNDAY...Northwest winds 5 to 10 knots becoming west 10 to 15 knots
late in the afternoon. Mostly sunny until late afternoon becoming
mostly cloudy. Waves 2 feet or less.
.SUNDAY NIGHT...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. Mostly cloudy early in
the evening then clearing. Waves 2 feet or less.
.MONDAY...North winds 5 to 10 knots. Sunny. Waves 2 feet or less.
.MONDAY NIGHT...Northeast winds 5 to 10 knots veering to the
southeast after midnight. Clear. Waves 2 feet or less.
.TUESDAY...South winds 5 to 10 knots increasing to 20 to 25 knots.
Mostly sunny in the morning. Light showers likely in the afternoon.
Rain showers in the evening. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 20 to 25 knots with gusts to 30 knots.
Partly cloudy. Showers. Waves 2 to 4 feet. A Small Craft Advisory
may be needed.
.THURSDAY...Northeast winds 15 to 20 knots. Partly cloudy. Waves 2
feet or less.

$$

AM

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

Graphical marine forecasts are available at weather.gov/greatlakes