FZUS63 KDTX 160147
GLFSC 

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
947 PM EDT Thu Oct 15 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...Low pressure is forecast to strengthen to 29.50 inches
as it tracks across the central Great Lakes tonight and early
Friday. A strong cold front in its wake brings northerly gales
Friday afternoon and evening. A ridge of high pressure then
builds across the Ohio Valley on Saturday and Sunday.

LCZ460-161000-
Lake St Clair-
947 PM EDT Thu Oct 15 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING...

.REST OF TONIGHT...Southeast winds 10 to 15 knots becoming south 15
to 20 knots after midnight...then becoming southwest 20 to 25 knots
early in the morning. Rain by midnight...then a chance of light rain
early in the morning. Waves 1 to 3 feet building to 2 to 4 feet
early in the morning.
.FRIDAY...West winds 20 to 25 knots with gusts to 30 knots becoming
northwest 15 to 20 knots early in the afternoon...then increasing to
20 to 25 knots with gusts to 30 knots late in the afternoon. Mostly
cloudy. A chance of light rain early in the morning. A chance of
light rain early in the afternoon...then light rain likely late in
the afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.FRIDAY NIGHT...North winds to 30 knots with brief gusts to 35 
knot gales possible. Mostly cloudy early in the evening becoming 
mostly clear. Waves 3 to 5 feet. Waves occasionally around 7 feet.
.SATURDAY...North winds 20 to 25 knots with gusts to 30 knots
becoming northwest 5 to 10 knots. Sunny. Waves 2 to 4 feet subsiding
to 2 feet or less in the late morning and afternoon.
.SATURDAY NIGHT...Southwest winds 10 to 15 knots. Clear. Waves 2
feet or less.
.SUNDAY...Southwest winds 10 to 15 knots. Clear. Waves 1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots. Mostly clear. Waves 2 feet
or less.
.TUESDAY...Light and variable winds. Mostly clear. Waves 2 feet or
less.

$$

TF

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

Graphical marine forecasts are available at weather.gov/greatlakes