FZUS63 KDTX 301948
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
348 PM EDT Thu Apr 30 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...A diffuse low pressure system, 30.00, will very
gradually move across the Great Lakes through the late week
period. This will bring periods of isolated showers and will
generally maintain lighter northwest flow.

LCZ460-010400-
Lake St Clair-
348 PM EDT Thu Apr 30 2026

.TONIGHT...Northwest winds 10 to 15 knots becoming north 5 to 10
knots by midnight...then veering to the east early in the morning.
Partly cloudy with a chance of light showers. Waves 2 feet or less.
.FRIDAY...North winds 5 to 10 knots. Partly sunny. A chance of light
showers early in the morning. A chance of light showers in the
afternoon. Waves 2 feet or less.
.FRIDAY NIGHT...North winds 5 to 10 knots. Partly cloudy. A chance
of light showers early in the evening. Waves 2 feet or less.
.SATURDAY...Northwest winds 5 to 10 knots. Partly sunny. Waves 2
feet or less.
.SATURDAY NIGHT...North winds 5 to 10 knots veering to the east by
midnight...then veering to the west after midnight. Partly cloudy.
Waves 2 feet or less.
.SUNDAY...West winds 10 to 15 knots becoming southwest 15 to 20
knots in the afternoon and evening. Mostly sunny in the morning
becoming partly cloudy. Waves 2 feet or less.
.MONDAY...Southwest winds 15 to 20 knots. Partly cloudy. A chance of
showers and thunderstorms. Waves 1 to 3 feet.
.TUESDAY...Northwest winds 15 to 20 knots. Mostly cloudy. Light
showers likely and a chance of thunderstorms. 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