FZUS63 KDTX 210227
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
1027 PM EDT Mon Apr 20 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...Gusty south wind precedes a weak disturbance that
passes through the region tonight. This system brings a chance of
showers and storms across the south and is followed by a weak
area of high pressure on Wednesday. A warm front then slowly
lifts into the area late Thursday into Friday as the parent low
pressure stalls over the upper Midwest.

LCZ460-211030-
Lake St Clair-
1027 PM EDT Mon Apr 20 2026

.REST OF TONIGHT...South winds 10 to 15 knots. Clear this evening
becoming mostly cloudy. Waves 2 feet or less.
.TUESDAY...South winds 15 to 20 knots becoming southwest 10 to 15
knots late in the afternoon. Mostly cloudy with a chance of
sprinkles in the morning...then mostly sunny in the afternoon. Waves
1 to 3 feet.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots becoming west 5 to
10 knots by midnight...then veering to the northwest after midnight.
Partly cloudy. Waves 2 feet or less.
.WEDNESDAY...North winds 5 to 10 knots until late afternoon becoming
light and variable. Mostly sunny. Waves 2 feet or less.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 knots becoming light and
variable. Clear. Waves 2 feet or less.
.THURSDAY...Southeast winds 5 to 10 knots increasing to 10 to 15
knots in the evening. Mostly sunny becoming partly cloudy. Waves 2
feet or less.
.FRIDAY...Southeast winds 10 to 15 knots. Partly cloudy. Light
showers likely. Waves 2 feet or less.
.SATURDAY...Northeast winds 10 to 15 knots. Mostly cloudy. Light
showers likely. Waves 2 feet or less.

$$

AA

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

Graphical marine forecasts are available at weather.gov/greatlakes