FZUS63 KDTX 190710
GLFSC 

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
310 AM EDT Tue May 19 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. Strong to severe
thunderstorms will be possible ahead of this cold front. High
pressure, 30.50 inches, then builds in mid-week.

LCZ460-191515-
Lake St Clair-
310 AM EDT Tue May 19 2026

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...South winds 10 to 15 knots becoming southwest 20 to 25
knots. Partly sunny. A chance of light showers in the late morning
and early afternoon. A chance of thunderstorms in the afternoon.
Light showers likely late in the afternoon. Waves 1 to 3 feet
building to 2 to 4 feet in the afternoon.
.TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15
knots by midnight...then becoming north 15 to 20 knots early in the
morning. Mostly cloudy. Showers likely early in the evening. A
chance of thunderstorms in the evening. A chance of light showers in
the late evening and overnight. Waves 1 to 3 feet.
.WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to 15
knots in the late morning and afternoon. Partly sunny. A chance of
light showers early in the morning. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to 10
to 15 knots after midnight. Mostly clear. Waves 1 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny becoming
partly cloudy. Waves 2 feet or less.
.FRIDAY...East winds 20 to 25 knots with gusts to 30 knots. Showers.
Waves 1 to 3 feet. A Small Craft Advisory may be needed.
.SATURDAY...Northeast winds 20 to 25 knots with gusts to 30 knots.
Mostly cloudy with showers. Waves 2 to 4 feet.

$$

MR

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

Graphical marine forecasts are available at weather.gov/greatlakes