Great Lakes Forecast
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485
FZUS63 KDTX 141947
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
347 PM EDT Mon Sep 14 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...High pressure, 30.30 inches, passes overhead this
afternoon before departing east this evening. Low pressure, 29.30
inches, then tracks across northern Ontario on Tuesday which
elevates wind gusts to gale force across central and northern
Lake Huron. A Gale Warning is in effect there from late tonight
through Tuesday afternoon.

LCZ460-150400-
Lake St Clair-
347 PM EDT Mon Sep 14 2026

.TONIGHT...Southeast winds 5 to 10 knots becoming south 15 to 20
knots. Partly cloudy. Waves 2 feet or less.
.TUESDAY...South winds 15 to 20 knots with gusts briefly to 25
knots in the afternoon. Partly sunny. A chance of light showers
in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Southwest winds 10 to 15 knots diminishing to 5 to
10 knots by midnight...then veering to the northwest after midnight.
Partly cloudy early in the evening becoming mostly cloudy. A chance
of showers and thunderstorms early in the evening...then a chance of
light showers in the late evening and overnight. Waves 2 feet or
less.
.WEDNESDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots
early in the afternoon. Mostly cloudy. Waves 2 feet or less.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots diminishing to 5
to 10 knots in the late evening and overnight. Partly cloudy
becoming mostly cloudy by midnight becoming partly cloudy. A chance
of light showers after midnight. Waves 2 feet or less.
.THURSDAY...North winds 5 to 10 knots. Partly sunny becoming mostly
cloudy. A chance of light showers. Waves 2 feet or less.
.FRIDAY...Northeast winds 5 to 10 knots. Partly cloudy. Waves 2 feet
or less.
.SATURDAY...South winds 10 to 15 knots. Partly cloudy. Showers
likely. 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