178
FZUS63 KDTX 152056
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
356 PM EST Sat Nov 15 2025

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, currently 29.30 inches, deepens as it
tracks east of Georgian Bay tonight. This draws a cold front
across the Great Lakes and ramps up northwest winds in excess of
30 knots with gusts to gales. Gale Warnings are in effect tonight
through Sunday night. High pressure, 30.20 inches, then begins to
build in starting Sunday night.

LCZ460-160500-
Lake St Clair-
356 PM EST Sat Nov 15 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM EST THIS EVENING
THROUGH SUNDAY EVENING...

.TONIGHT...Northwest winds 15 to 20 knots. Partly cloudy. Waves 1 to
3 feet.
.SUNDAY...Northwest winds 20 to 25 knots with gusts to 30 knots.
Mostly sunny. Waves 2 to 4 feet.
.SUNDAY NIGHT...Northwest winds 20 to 25 knots. Gusts to 30 knots
early in the evening. Mostly clear. Waves 2 to 4 feet subsiding to 1
to 3 feet after midnight.
.MONDAY...Northwest winds 15 to 20 knots diminishing to 10 to 15
knots early in the afternoon. Mostly sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Mostly clear until
early morning becoming mostly cloudy. Waves 2 feet or less.
.TUESDAY...West winds 5 to 10 knots backing to the southeast in the
afternoon...then backing to the northeast in the evening. Mostly
cloudy. A chance of light rain and snow...then a chance of light
rain in the evening. Waves 2 feet or less.
.WEDNESDAY...East winds 5 to 10 knots. Partly cloudy. Waves 2 feet
or less.
.THURSDAY...Southeast winds 10 to 15 knots. Partly cloudy. Light
rain likely. Waves 2 feet or less.

$$

MV

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

Graphical marine forecasts are available at weather.gov/greatlakes