851
FZUS63 KDTX 261411
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
911 AM EST Wed Nov 26 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, 29.30 inches, will hold over eastern
Upper Michigan and the straits region today. Cold air and a
strong compact wind field associated with this low will support
gales and expanding snow shower activity across the region. The
low will exit to the northeast of Georgian Bay tonight into
Thursday. Strong winds and cold air circulating around the system
will sustain gales and snow showers through Thursday. High
pressure, 30.40 inches, will expand across the western and
southern Great Lakes region Friday and Friday night. Lingering
surface troughing over Lake Huron will however sustain some
degree of gusty winds and snow showers. Deepening low pressure is
forecast to lift across the region from the southwest Saturday
night and Sunday, bringing widespread snow with a chance for
gusty winds in the wake of the system Sunday night.

LCZ460-262215-
Lake St Clair-
911 AM EST Wed Nov 26 2025

...GALE WARNING IN EFFECT THROUGH LATE THURSDAY NIGHT...

.REST OF TODAY...Southwest winds to 30 knots increasing to 35 knot
gales late in the afternoon. Gusts to 40 knot gales. Mostly cloudy.
A chance of light rain and snow early in the afternoon. Light rain
and light snow likely late in the afternoon. Waves 3 to 5 feet.
Waves occasionally around 7 feet.
.TONIGHT...West at 40 knot gales with gusts to 45 knot gales.
Cloudy. Light rain and snow likely until early morning...then a
chance of light rain and snow early in the morning. Waves 4 to 6
feet. Waves occasionally around 7 feet.
.THURSDAY...West at 35 knot gales diminishing to 30 knots in the
late morning and afternoon. Mostly cloudy. A chance of light snow. A
chance of light rain in the late morning and early afternoon. Waves
3 to 5 feet. Waves occasionally around 7 feet.
.THURSDAY NIGHT...West at 35 knot gales. Mostly cloudy with a chance
of light snow until early morning...then partly cloudy after
midnight. Waves 3 to 5 feet. Waves occasionally around 6 feet.
.FRIDAY...West winds to 30 knots diminishing to 15 to 20 knots in
the afternoon and evening. Partly cloudy. Waves 3 to 5 feet
subsiding to 1 to 3 feet in the afternoon and evening. Waves
occasionally around 7 feet.
.SATURDAY...South winds 15 to 20 knots. Light snow. Waves 2 feet or
less.
.SUNDAY...West winds 20 to 25 knots. Light rain and snow. Waves 2 to
4 feet.

$$

SC

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

Graphical marine forecasts are available at weather.gov/greatlakes