950
FZUS63 KDTX 220214
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
914 PM EST Fri Nov 21 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...High pressure, 30.10 inches, will build into the
Central Great Lakes through tomorrow. Low pressure tracking
through northern Ontario Saturday evening will track a cold front
through the region Saturday night. Northwest wind gusts behind
the front Sunday morning will reach into the 20 to 30 knot range.

LCZ460-221015-
Lake St Clair-
914 PM EST Fri Nov 21 2025

.REST OF TONIGHT...Northwest winds 5 to 10 knots becoming north 10
to 15 knots after midnight. Mostly cloudy in the late evening and
early morning then clearing. Waves 2 feet or less.
.SATURDAY...North winds 10 to 15 knots becoming northwest 5 to 10
knots in the late morning and early afternoon...then becoming light
and variable late in the afternoon. Mostly sunny. Waves 2 feet or
less.
.SATURDAY NIGHT...Southwest winds 5 to 10 knots increasing to 15 to
20 knots. Partly cloudy becoming mostly cloudy in the late evening
and early morning becoming mostly clear. Waves 2 feet or less.
.SUNDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots in
the late morning and afternoon. Mostly sunny. Waves 2 feet or less.
.SUNDAY NIGHT...West winds 5 to 10 knots. Mostly clear. Waves 2 feet
or less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots in
the evening. Mostly sunny becoming partly sunny in the afternoon
becoming mostly cloudy. Waves 2 feet or less.
.TUESDAY...Southwest winds 15 to 20 knots. Light rain. Waves 1 to 3
feet.
.WEDNESDAY...West winds to 30 knots. Partly cloudy. A chance of
light rain. Waves 2 to 4 feet. A Small Craft Advisory may be needed.

$$

MR

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

Graphical marine forecasts are available at weather.gov/greatlakes